1 00:00:04,071 --> 00:00:07,339 [Paul Ellzey] I've got a monster out there who did something hideous 2 00:00:07,341 --> 00:00:09,375 and needs off the street quickly. 3 00:00:09,377 --> 00:00:14,246 It was just a purely rage-filled revenge attack. 4 00:00:14,248 --> 00:00:18,684 She was naive about life, as innocent as it could be. 5 00:00:18,686 --> 00:00:21,453 [Andy Beach] She got a scholarship at the Art Institute of Dallas 6 00:00:21,455 --> 00:00:23,722 and she was on her way. 7 00:00:23,724 --> 00:00:27,026 She was thinking she just didn't have time for the relationship. 8 00:00:27,028 --> 00:00:28,727 She just wanted to cut him loose. 9 00:00:28,729 --> 00:00:31,997 He's obviously going to feel rejected and left out. 10 00:00:31,999 --> 00:00:35,768 So it's just a recipe for violence and murder. 11 00:00:35,770 --> 00:00:39,738 [Beach] She confided she was sexually attracted to her. 12 00:00:39,740 --> 00:00:42,608 [Roots Gadhia] She had access to the apartment. 13 00:00:42,610 --> 00:00:45,577 Suggests that she may have been the killer. 14 00:00:45,579 --> 00:00:48,213 [Beach] He hated that girl. She was standing in the way 15 00:00:48,215 --> 00:00:51,383 between a boy that he was interested in romantically. 16 00:00:51,385 --> 00:00:54,620 [Ellzey] I said, "You're the only person right now that would have motive to do this." 17 00:00:54,622 --> 00:00:56,188 I tell him he's a murderer 18 00:00:56,190 --> 00:00:57,723 after we caught him in lies. 19 00:01:00,761 --> 00:01:05,264 [narrator] Every day in North America dozens of people are murdered. 20 00:01:05,266 --> 00:01:07,666 The key to solving the toughest of these homicides 21 00:01:07,668 --> 00:01:11,003 lies in the final 24 hours of the victim's life. 22 00:01:11,839 --> 00:01:13,505 To crack the case, 23 00:01:13,507 --> 00:01:17,142 detectives must reconstruct that critical timeline. 24 00:01:17,144 --> 00:01:19,812 The minutes and hours containing evidence 25 00:01:19,814 --> 00:01:21,513 that can help unlock the mystery 26 00:01:22,149 --> 00:01:23,315 and catch the killer. 27 00:01:31,792 --> 00:01:33,258 [narrator] Dallas, Texas, 28 00:01:33,260 --> 00:01:36,795 the third-largest city in the Lone Star State. 29 00:01:36,797 --> 00:01:40,499 It long ago outgrew its roots in oil and cattle ranching 30 00:01:40,501 --> 00:01:43,836 to become a hub of commerce, high-tech and the arts. 31 00:01:44,805 --> 00:01:48,440 Dallas is a very diverse city. 32 00:01:48,442 --> 00:01:52,578 There's still the Old Line Baptist churches in Dallas 33 00:01:52,580 --> 00:01:56,748 and there's a thriving LGBTQ community in Dallas. 34 00:01:56,750 --> 00:01:57,983 The atmosphere is... 35 00:01:57,985 --> 00:02:00,252 I would like to call it eclectic. 36 00:02:00,254 --> 00:02:03,689 [Beach] There are three different universities in Dallas. 37 00:02:03,691 --> 00:02:05,390 Lots of college students. 38 00:02:05,392 --> 00:02:07,392 It's an exciting place to be when you're young. 39 00:02:08,462 --> 00:02:11,063 [Ellzey] But with burglaries, robberies, rapes, 40 00:02:11,065 --> 00:02:14,066 property crimes and, unfortunately, homicides. 41 00:02:15,402 --> 00:02:16,802 [narrator] Just after 12:00 p.m. 42 00:02:16,804 --> 00:02:19,171 on a Friday afternoon in early September, 43 00:02:19,840 --> 00:02:21,406 a 911 call comes in 44 00:02:21,408 --> 00:02:25,110 from a resident of a student housing complex known as the Falls. 45 00:02:26,447 --> 00:02:28,881 I was in the office and dispatch called us 46 00:02:28,883 --> 00:02:31,316 and notified us that they had a homicide. 47 00:02:31,318 --> 00:02:36,488 The only thing we knew is that it was a female in an apartment complex. 48 00:02:36,490 --> 00:02:40,159 [narrator] Veteran detective Paul Ellzey of the Dallas Police Department 49 00:02:40,161 --> 00:02:42,261 is called to the scene to investigate. 50 00:02:43,531 --> 00:02:47,466 [Beach] Ashley Olvera was the individual that called 911. 51 00:02:47,468 --> 00:02:49,368 She was there to meet the police 52 00:02:49,370 --> 00:02:51,870 when they came at the scene of the murder. 53 00:02:52,706 --> 00:02:54,840 There were no signs of forced entry. 54 00:02:54,842 --> 00:02:56,975 The door was not damaged. 55 00:02:56,977 --> 00:03:01,713 [Ellzey] I didn't see any broken windows, no blood, no bullet holes. 56 00:03:01,715 --> 00:03:04,082 Everything looked fine until you entered the bedroom. 57 00:03:05,152 --> 00:03:07,052 It was just a horrific sight. 58 00:03:07,054 --> 00:03:08,921 There was blood everywhere. 59 00:03:08,923 --> 00:03:11,290 It had been there for a while. 60 00:03:11,292 --> 00:03:13,959 And you could tell because there was a lot of dried blood. 61 00:03:13,961 --> 00:03:16,662 The smell of death reeked in the room. 62 00:03:16,664 --> 00:03:18,997 I saw a young lady with a t-shirt on. 63 00:03:18,999 --> 00:03:20,966 She's got her underwear on. That's all. 64 00:03:20,968 --> 00:03:23,068 Laying face-down in bed. 65 00:03:23,070 --> 00:03:26,805 As I looked closer she's got stab wounds on her back, 66 00:03:26,807 --> 00:03:30,242 stab wounds on her neck, stab wounds on the right side 67 00:03:30,244 --> 00:03:33,612 and it was a very, very brutal crime scene. 68 00:03:34,481 --> 00:03:37,115 The covers were messed up. 69 00:03:37,117 --> 00:03:39,418 But there was no lamps turned over, 70 00:03:39,420 --> 00:03:41,053 there was nothing broken. 71 00:03:41,055 --> 00:03:44,056 I mean it looks like she was maybe sleeping on her stomach 72 00:03:44,058 --> 00:03:46,758 and caught unsuspecting. 73 00:03:46,760 --> 00:03:50,095 [Beach] It appeared like her assailant had just pounced on her 74 00:03:50,097 --> 00:03:54,233 when she was completely helpless and unable to defend herself. 75 00:03:54,235 --> 00:03:55,634 [Ellzey] I've been around the block. 76 00:03:55,636 --> 00:03:58,270 I've seen some pretty horrible things. 77 00:03:58,272 --> 00:04:02,608 You see things done to human bodies that should never happen. 78 00:04:02,610 --> 00:04:05,010 [Beach] It was a gruesome, gruesome scene 79 00:04:05,012 --> 00:04:08,680 and deeply affected these hardened investigators 80 00:04:08,682 --> 00:04:12,184 to see just how this girl had been destroyed. 81 00:04:12,186 --> 00:04:16,622 [narrator] The victim is 20-year-old Samantha Nance known as Shelley, 82 00:04:16,624 --> 00:04:20,392 a sophomore at the prestigious Art Institute of Dallas. 83 00:04:20,394 --> 00:04:23,395 [Ellzey] She had come from a town called Italy, Texas. 84 00:04:23,397 --> 00:04:26,999 Italy is a little bitty small bedroom community. 85 00:04:27,001 --> 00:04:32,170 Shelley was the third and youngest daughter in a family of five. 86 00:04:32,172 --> 00:04:34,406 And her family was very close. 87 00:04:34,408 --> 00:04:36,041 [Beach] Shelley was an introvert. 88 00:04:36,043 --> 00:04:39,111 From an early age, painting was her outlet. 89 00:04:39,113 --> 00:04:42,014 She entered a contest in her junior year in high school, 90 00:04:42,016 --> 00:04:43,682 she won that contest, 91 00:04:43,684 --> 00:04:49,221 and got a scholarship at the Art Institute of Dallas and she was on her way. 92 00:04:49,223 --> 00:04:51,990 [Hannah Cooper] Shelley wasn't the typical college student. 93 00:04:51,992 --> 00:04:53,892 She wasn't going out partying. 94 00:04:53,894 --> 00:04:55,894 She pretty much liked to stay at home 95 00:04:55,896 --> 00:04:57,129 playing a video game, 96 00:04:57,131 --> 00:04:59,698 listening to music and drawing. 97 00:04:59,700 --> 00:05:03,769 You couldn't dislike Shelley Nance. She was a beautiful soul. 98 00:05:04,872 --> 00:05:07,339 [narrator] To track down Shelley Nance's killer, 99 00:05:07,341 --> 00:05:09,374 investigators will need to piece together 100 00:05:09,376 --> 00:05:11,476 the last 24 hours of her life. 101 00:05:12,880 --> 00:05:14,246 Obviously one of the important things 102 00:05:14,248 --> 00:05:16,715 we're looking for is the approximate time of death. 103 00:05:16,717 --> 00:05:19,384 So based on her body's state and condition, 104 00:05:19,386 --> 00:05:21,853 the medical examiner estimated the time of death 105 00:05:21,855 --> 00:05:25,590 was approximately 24 hours prior to her being found. 106 00:05:25,592 --> 00:05:26,892 And his best guesstimate 107 00:05:26,894 --> 00:05:30,862 was between 9:00 a.m. and 12-noon the prior day, 108 00:05:30,864 --> 00:05:35,534 Thursday, which would be the morning of the 10th. 109 00:05:35,536 --> 00:05:38,070 [narrator] With a broad window of death established, 110 00:05:38,072 --> 00:05:40,739 police begin processing the crime scene. 111 00:05:40,741 --> 00:05:46,244 [Ellzey] We noticed that there was a little bitty sliver of a blue plastic material, 112 00:05:46,246 --> 00:05:49,214 that was, I believe, on her arm close to her hand, 113 00:05:49,917 --> 00:05:51,450 that just didn't fit. 114 00:05:51,452 --> 00:05:55,087 I didn't see anything in the apartment that it would have come from. 115 00:05:55,089 --> 00:05:59,891 So that was bagged and tagged and sent to the crime lab for analysis. 116 00:05:59,893 --> 00:06:04,062 [narrator] Investigators get another surprise when they enter the bathroom. 117 00:06:04,064 --> 00:06:05,831 [Ellzey] One sink has two three little 118 00:06:05,833 --> 00:06:09,301 small drops of blood, that you can tell. 119 00:06:09,303 --> 00:06:12,604 [Gindratt] My thinking is maybe the killer cleaned up before they left 120 00:06:12,606 --> 00:06:16,641 and if they were injured, it could've been their own blood. 121 00:06:16,643 --> 00:06:21,012 [Beach] They collected swabs for future comparison whether it be to Shelley 122 00:06:21,014 --> 00:06:25,984 or, potentially, to the individual that murdered Shelley Nance. 123 00:06:25,986 --> 00:06:28,653 [narrator] The rest of the apartment seems untouched 124 00:06:28,655 --> 00:06:30,856 except for one thing. 125 00:06:30,858 --> 00:06:34,192 [Ellzey] We got to the kitchen and they had a set of knives in there. 126 00:06:34,194 --> 00:06:37,629 And Ashley looked at it and she thought that 127 00:06:37,631 --> 00:06:40,499 at least one or maybe two knives weren't there. 128 00:06:40,501 --> 00:06:42,267 They weren't in the dishwasher, 129 00:06:42,269 --> 00:06:45,170 they weren't in the sink, they couldn't be accounted for. 130 00:06:45,672 --> 00:06:47,439 So at that point, 131 00:06:47,441 --> 00:06:50,942 maybe the killer did not bring a weapon with him 132 00:06:50,944 --> 00:06:52,778 and used a weapon at the scene. 133 00:06:52,780 --> 00:06:55,447 It could be a possibility. We don't know. 134 00:06:55,449 --> 00:06:59,117 [narrator] Investigators work to develop a theory of the crime. 135 00:06:59,119 --> 00:07:01,720 I'm trying to think of a motive. 136 00:07:01,722 --> 00:07:04,222 Everything looked in place in the apartment. 137 00:07:04,224 --> 00:07:05,791 Her laptop was there. 138 00:07:05,793 --> 00:07:09,961 Things that is normally taken during a burglary is still there. 139 00:07:09,963 --> 00:07:11,530 Shelley had her underwear on. 140 00:07:11,532 --> 00:07:16,902 So immediately I thought, well, maybe sexual assault is not a motive. 141 00:07:16,904 --> 00:07:19,304 [narrator] Looking for answers to what went on 142 00:07:19,306 --> 00:07:21,807 during the final 24 hours of Shelley's life, 143 00:07:21,809 --> 00:07:23,742 detectives turn to the forensics. 144 00:07:24,745 --> 00:07:26,678 They were able to determine that Shelley 145 00:07:26,680 --> 00:07:29,181 had been on her laptop from about midnight 146 00:07:29,183 --> 00:07:32,150 to almost 6:00 in the morning of September the 10th. 147 00:07:32,152 --> 00:07:34,019 Just doing schoolwork. 148 00:07:34,021 --> 00:07:36,421 At about 5:57 a.m., 149 00:07:36,423 --> 00:07:39,991 Shelley signed off and she finally went to sleep. 150 00:07:39,993 --> 00:07:44,362 [Ellzey] So what happened really, really bad, happened after 6:00 a.m. 151 00:07:44,364 --> 00:07:47,699 Any time a person is attacked and murdered with a knife, 152 00:07:47,701 --> 00:07:50,869 it's been my experience that it's something very personal, 153 00:07:50,871 --> 00:07:52,804 that they generally know the victim. 154 00:07:52,806 --> 00:07:55,207 Because when you use a knife on somebody, 155 00:07:55,209 --> 00:07:56,842 you have to get in their space. 156 00:07:56,844 --> 00:07:59,878 I mean, you want them to know what's happening. 157 00:07:59,880 --> 00:08:03,248 [Beach] Shelley wasn't killed, she was overkilled. 158 00:08:03,250 --> 00:08:05,817 This was a crime of hate. 159 00:08:05,819 --> 00:08:08,587 A crime of passion. 160 00:08:08,589 --> 00:08:12,424 [Ellzey] The closest person to her inside this apartment is Ashley. 161 00:08:12,426 --> 00:08:16,394 We have to establish that she's telling the truth, where her whereabouts are 162 00:08:16,396 --> 00:08:19,197 and see if she has a motive for such a heinous crime. 163 00:08:21,335 --> 00:08:24,936 [narrator] Investigators bring Shelley's roommate, Ashley Olvera, 164 00:08:24,938 --> 00:08:27,572 down to the police station for an interview. 165 00:08:27,574 --> 00:08:32,143 [Ellzey] Ashley's demeanor was not the kind of demeanor I would expect 166 00:08:32,145 --> 00:08:33,845 had my roommate got murdered. 167 00:08:34,448 --> 00:08:36,948 She was kinda monotone. 168 00:08:36,950 --> 00:08:39,117 Or maybe she was in shock. I don't know. 169 00:08:39,119 --> 00:08:42,287 Ashley was also a student at the Dallas Art Institute. 170 00:08:42,289 --> 00:08:43,455 She was Shelley's roommate. 171 00:08:43,457 --> 00:08:46,091 Had been for two, three months. 172 00:08:46,093 --> 00:08:51,129 But they didn't have what I would consider a normal female relationship. 173 00:08:51,131 --> 00:08:53,798 You know, if you got two girls living under one roof, 174 00:08:53,800 --> 00:08:56,101 and I can tell you this because I've had two daughters, 175 00:08:56,103 --> 00:08:59,371 they're fussing over the bathroom, they're fussing over food. 176 00:08:59,373 --> 00:09:01,106 That wasn't happening. 177 00:09:01,108 --> 00:09:02,841 Shelley stayed in her room. 178 00:09:02,843 --> 00:09:06,177 She took care of her business, very quiet, to the point that 179 00:09:06,179 --> 00:09:08,847 Ashley sometimes didn't even know if she was home. 180 00:09:08,849 --> 00:09:12,384 And she was asked, obviously, what she was doing the morning of the 10th. 181 00:09:32,973 --> 00:09:35,140 She was in class all day long. 182 00:09:35,142 --> 00:09:39,210 And then she left about 3:30 or 4:00 that afternoon to go back home. 183 00:09:46,587 --> 00:09:50,121 [Ellzey] When we asked if she noticed if Shelley was home 184 00:09:50,123 --> 00:09:51,823 when she got home that afternoon. 185 00:09:51,825 --> 00:09:53,124 She stated she didn't know. 186 00:09:53,126 --> 00:09:54,693 She assumed she was. 187 00:09:54,695 --> 00:09:56,728 But she was quiet. 188 00:09:56,730 --> 00:09:58,964 [Beach] So Ashley didn't see Shelley. 189 00:09:58,966 --> 00:10:01,633 She didn't think anything of it because they would go, 190 00:10:01,635 --> 00:10:04,102 you know, hours, sometimes a day at a time, 191 00:10:04,104 --> 00:10:05,670 they wouldn't see each other at the apartment. 192 00:10:07,240 --> 00:10:12,143 [narrator] The next day, Ashley had left for school at the same time, 8:00 a.m. 193 00:10:12,145 --> 00:10:14,479 But around 9:45 a.m., 194 00:10:14,481 --> 00:10:16,681 an administrator had approached her. 195 00:10:16,683 --> 00:10:19,384 The school had received a call from Shelley's parents 196 00:10:19,386 --> 00:10:23,021 who hadn't heard from her in over 24 hours. 197 00:10:23,023 --> 00:10:26,858 They asked Ashley if she knew where Shelley was. 198 00:10:26,860 --> 00:10:30,261 Ashley assumed Shelley was still in her room back at the apartment. 199 00:10:30,263 --> 00:10:33,365 [Ellzey] They asked her to go home and check on Shelley. 200 00:10:33,367 --> 00:10:36,668 She gets to her apartment at about 11:45 a.m. 201 00:10:36,670 --> 00:10:40,171 She knocks on the door, yells for Shelley, she don't get an answer. 202 00:10:40,173 --> 00:10:42,674 She knocked again. No answer. 203 00:10:42,676 --> 00:10:45,510 After the second time she knocked with no answer, 204 00:10:45,512 --> 00:10:47,145 she opened the door. 205 00:10:47,147 --> 00:10:48,880 And inside the room it's dimly lit 206 00:10:48,882 --> 00:10:50,515 because the curtains are pulled. 207 00:10:50,517 --> 00:10:54,686 So she walks up, grabs Shelley by a foot, kinda shakes her, 208 00:10:54,688 --> 00:10:55,920 and she's cold. 209 00:10:56,723 --> 00:10:57,989 It startles her. 210 00:10:57,991 --> 00:11:01,292 And she saw what the monster had did. 211 00:11:01,294 --> 00:11:04,095 [Beach] Ashley Olvera then called 911. 212 00:11:05,632 --> 00:11:07,666 [narrator] Detectives find it strange 213 00:11:07,668 --> 00:11:13,605 that Ashley hadn't noticed that Shelley had been lying dead in her room for 24 hours. 214 00:11:13,607 --> 00:11:19,010 [Gadhia] The simple oddity of her not having any contact with her roommate 215 00:11:19,012 --> 00:11:22,280 suggests that potentially she may have been the killer. 216 00:11:23,116 --> 00:11:26,084 She had access to the apartment. 217 00:11:26,086 --> 00:11:29,621 She had access to her roommate. 218 00:11:29,623 --> 00:11:33,358 [Ellzey] I said, "I just gotta tell you you're the only person I'm looking at, 219 00:11:33,360 --> 00:11:36,394 you're the only person right now that would have motive to do this." 220 00:11:36,396 --> 00:11:39,230 I said, "What the hell happened between you 221 00:11:39,232 --> 00:11:43,702 and Shelley that went so horribly bad that it resulted in this? 222 00:11:43,704 --> 00:11:44,769 Why did you do this?" 223 00:11:49,342 --> 00:11:50,842 [narrator] In the brutal stabbing 224 00:11:50,844 --> 00:11:53,144 of 20-year-old art student, Shelley Nance, 225 00:11:53,146 --> 00:11:55,780 investigators have her roommate and classmate, 226 00:11:55,782 --> 00:11:59,017 Ashley Olvera, in their sights. 227 00:11:59,019 --> 00:12:01,720 [Ellzey] When I asked her if she was in the bathroom that morning 228 00:12:01,722 --> 00:12:04,055 to get ready to go to school, she said she was. 229 00:12:04,057 --> 00:12:05,623 I asked her if she noticed the blood. 230 00:12:15,535 --> 00:12:17,535 [Ellzey] And I asked her, I said, "You know, why in the world 231 00:12:17,537 --> 00:12:21,406 would you see blood in there and you didn't care enough about her to knock on the door 232 00:12:21,408 --> 00:12:24,843 and say, 'Hey, are you okay? Are you bleeding? What's up?'" 233 00:12:24,845 --> 00:12:27,712 She said she didn't register. It didn't mean anything to her. 234 00:12:27,714 --> 00:12:29,080 And I thought that kinda odd. 235 00:12:30,317 --> 00:12:32,650 I asked her, I says, "You've been roommates for a while 236 00:12:32,652 --> 00:12:35,120 and there's conflicts that comes with that." 237 00:12:36,123 --> 00:12:38,056 Then I accused her of killing her. 238 00:12:38,058 --> 00:12:39,524 And she said, "I didn't do it." 239 00:12:39,526 --> 00:12:40,925 Not very emotional, 240 00:12:40,927 --> 00:12:44,596 not, "Oh, my God, you're accusing of murder. This is my roommate." 241 00:12:44,598 --> 00:12:48,099 "I didn't do it. I didn't do it. I would not do it." 242 00:12:48,101 --> 00:12:49,768 [narrator] Despite their suspicions, 243 00:12:49,770 --> 00:12:53,204 investigators need more evidence to arrest Ashley 244 00:12:53,206 --> 00:12:54,606 and are forced to let her go. 245 00:12:55,776 --> 00:12:56,808 It certainly seems that 246 00:12:56,810 --> 00:12:58,643 Ashley would have had the opportunity 247 00:12:58,645 --> 00:12:59,844 to murder Shelley. 248 00:12:59,846 --> 00:13:01,613 But what investigators don't know is, 249 00:13:01,615 --> 00:13:02,814 "Why would she?" 250 00:13:02,816 --> 00:13:04,315 That a question they want answered 251 00:13:04,317 --> 00:13:06,351 before they make their next move. 252 00:13:06,353 --> 00:13:09,754 [narrator] Detectives reach out to Shelley's mom, Cynthia Nance, 253 00:13:09,756 --> 00:13:12,423 hoping she can shed more light on Shelley 254 00:13:12,425 --> 00:13:14,592 and who might have wanted to hurt her. 255 00:13:14,594 --> 00:13:17,629 [Beach] Obviously, the police were interested in finding out 256 00:13:17,631 --> 00:13:20,899 from Cynthia, who was close to Shelley, did she have a boyfriend? 257 00:13:20,901 --> 00:13:23,234 Did she have any known enemies? 258 00:13:23,236 --> 00:13:26,771 In Cynthia's eyes, Shelley had never met anybody 259 00:13:26,773 --> 00:13:30,341 that just didn't immediately warm up to her. 260 00:13:30,343 --> 00:13:34,312 Cynthia was racking her brain about who could've done this. 261 00:13:34,314 --> 00:13:39,317 And really the only individual that kinda kept rolling around in Cynthia's mind 262 00:13:39,319 --> 00:13:43,588 was this boy that her daughter had dated a few times. 263 00:13:43,590 --> 00:13:47,091 We learn that she has a boyfriend named Nathan. 264 00:13:47,093 --> 00:13:51,462 And that they haven't been going together very long. About a couple of months. 265 00:13:51,464 --> 00:13:57,402 [Beach] Their big deal was going to anime festivals and they were both into that. 266 00:13:57,404 --> 00:13:59,537 But Cynthia thought it was significant that 267 00:13:59,539 --> 00:14:01,639 about two weeks before Shelley's murder, 268 00:14:01,641 --> 00:14:06,311 Shelley had told Cynthia that she was going to break up with Nathan. 269 00:14:06,313 --> 00:14:08,379 She was thinking about telling him that, 270 00:14:08,381 --> 00:14:11,082 you know, she just didn't have time for the relationship. 271 00:14:11,084 --> 00:14:14,485 It wasn't going in the direction that she thought it should go 272 00:14:14,487 --> 00:14:16,120 and she just wanted to cut him loose. 273 00:14:17,224 --> 00:14:20,425 So Nathan now becomes a person of interest 274 00:14:20,427 --> 00:14:21,893 that we need to locate 275 00:14:21,895 --> 00:14:23,761 and get down there and start interviewing him. 276 00:14:25,966 --> 00:14:29,667 [narrator] Detectives bring 20-year-old art student Nathan Shuck 277 00:14:29,669 --> 00:14:31,903 down to the station for an interview. 278 00:14:31,905 --> 00:14:33,371 [Ellzey] I said, "Nathan, you're down here 279 00:14:33,373 --> 00:14:37,175 because a crime happened to Shelley. She was found murdered." 280 00:14:37,177 --> 00:14:41,212 And it's like it just went in one ear and out the other. 281 00:14:41,214 --> 00:14:42,347 Like it don't register. 282 00:14:42,349 --> 00:14:44,249 Not very emotional. 283 00:14:44,251 --> 00:14:45,917 He's like, "What?" 284 00:14:45,919 --> 00:14:47,685 I don't know if the guy's in shock. 285 00:14:47,687 --> 00:14:50,521 He just didn't have the reaction that I would think. 286 00:14:50,523 --> 00:14:54,425 [narrator] At first, Nathan seems like an unlikely killer. 287 00:14:54,427 --> 00:14:59,731 The best way to describe Nathan was he was 19 going on about 13. 288 00:14:59,733 --> 00:15:02,767 [Ellzey] He was just a little bitty skinny guy who likes art. 289 00:15:02,769 --> 00:15:07,038 His mom raised him and he's doted on. 290 00:15:07,040 --> 00:15:11,442 [Beach] Nathan still, even though he was living there in town, in Dallas, 291 00:15:11,444 --> 00:15:13,478 he would go home days at a time. 292 00:15:13,480 --> 00:15:15,546 His momma would cut the crusts off his bread 293 00:15:15,548 --> 00:15:18,016 like she had done since he was about three years old. 294 00:15:19,819 --> 00:15:21,886 I says, "What the hell happened?" 295 00:15:21,888 --> 00:15:24,222 And I probably even fibbed to him a little bit and said, 296 00:15:24,224 --> 00:15:27,625 "Well, you know, you're the last person seen with her alive. 297 00:15:27,627 --> 00:15:29,060 You was over at her apartment." 298 00:15:29,062 --> 00:15:31,996 He's like, "No, no, no, no, no. I didn't do it. 299 00:15:31,998 --> 00:15:34,198 You need to look for somebody else." 300 00:15:34,200 --> 00:15:35,733 [narrator] Looking for a motive, 301 00:15:35,735 --> 00:15:40,238 detectives push him for details about his and Shelley's relationship. 302 00:15:40,240 --> 00:15:42,974 [Beach] They were both new at the dating game. 303 00:15:42,976 --> 00:15:44,976 So they were taking things slow. 304 00:15:44,978 --> 00:15:47,712 [Ellzey] I asked him, "What is the extent of your relationship? 305 00:15:47,714 --> 00:15:50,014 Are you sexually involved with Shelley?" 306 00:16:17,077 --> 00:16:21,679 Just a very unusual boyfriend-girlfriend relationship. 307 00:16:21,681 --> 00:16:24,782 [narrator] Detectives believe that if Nathan is the killer, 308 00:16:24,784 --> 00:16:27,919 he may have defensive injuries from the struggle with Shelley. 309 00:16:35,895 --> 00:16:38,596 [Beach] Nathan explained to him he was a fidgety sleeper, 310 00:16:38,598 --> 00:16:41,132 he didn't trim his fingernails like he probably should have. 311 00:16:41,134 --> 00:16:44,602 And these were self-inflicted in the middle of the night. 312 00:16:44,604 --> 00:16:47,171 But they could've been from Shelley fighting back. 313 00:16:48,508 --> 00:16:51,175 [narrator] Detectives drill down on Nathan's whereabouts 314 00:16:51,177 --> 00:16:54,345 during the window of time when Shelley was killed. 315 00:16:54,347 --> 00:16:56,748 [Ellzey] We're trying to get his timeline established. 316 00:16:56,750 --> 00:17:01,252 And I asked him the last time he either talked to her in person 317 00:17:01,254 --> 00:17:03,988 or by telephone, when he talked to Shelley. 318 00:17:12,732 --> 00:17:13,831 [Ellzey] I also asked Nathan 319 00:17:13,833 --> 00:17:16,901 the last time he physically saw Shelley. 320 00:17:16,903 --> 00:17:18,870 And he told me that him and her 321 00:17:18,872 --> 00:17:21,472 had attended an art festival downtown. 322 00:17:28,214 --> 00:17:31,616 [Ellzey] I asked him what happened after the art show 323 00:17:31,618 --> 00:17:33,351 that they had attended. Where did he go? 324 00:17:33,353 --> 00:17:35,953 Did he go to her house or his apartment? 325 00:17:35,955 --> 00:17:39,357 He said, no, that he went to his mom's house. 326 00:17:39,359 --> 00:17:42,427 [Beach] Nathan had been sick and he was sick enough 327 00:17:42,429 --> 00:17:44,629 that he decided to go home to his mom 328 00:17:44,631 --> 00:17:47,932 and get some home cooking and sleep in his own bed. 329 00:17:47,934 --> 00:17:51,069 Nathan told his mom the day before the murder 330 00:17:51,071 --> 00:17:52,270 that he was feeling better 331 00:17:52,272 --> 00:17:54,205 and he wanted to go to school the next day. 332 00:17:55,708 --> 00:17:58,409 His mom drove Nathan in from their home 333 00:17:58,411 --> 00:18:00,511 on the morning of September the 10th 334 00:18:00,513 --> 00:18:02,713 and dropped him off at his apartment. 335 00:18:04,451 --> 00:18:07,685 [narrator] Prompted by Cynthia's knowledge of their impending break-up, 336 00:18:07,687 --> 00:18:11,489 detectives dig deeper into the state of Nathan and Shelley's relationship. 337 00:18:20,500 --> 00:18:22,567 [Ellzey] He had no idea that Shelley was gonna 338 00:18:22,569 --> 00:18:24,502 share that kind of information with him. 339 00:18:24,504 --> 00:18:28,306 So if he was jealous, which is sometimes motive for violence, 340 00:18:28,308 --> 00:18:30,408 that wasn't on the radar. 341 00:18:30,410 --> 00:18:32,810 [Beach] But there is about a three-hour, 342 00:18:32,812 --> 00:18:34,412 four-hour time gap 343 00:18:34,414 --> 00:18:36,180 between 9:00 and about 1:00 344 00:18:36,182 --> 00:18:38,249 of the afternoon of September the 10th 345 00:18:38,251 --> 00:18:40,284 where Nathan is basically unaccounted for. 346 00:18:41,888 --> 00:18:47,024 [Ellzey] So he would still have had the opportunity to commit this crime 347 00:18:47,026 --> 00:18:49,293 and we still needed to look at him as a suspect. 348 00:18:52,232 --> 00:18:54,832 [narrator] With suspicion swirling around Nathan, 349 00:18:54,834 --> 00:18:57,068 police ask to search his apartment 350 00:18:57,070 --> 00:19:00,404 looking for evidence to connect him to the crime. 351 00:19:00,406 --> 00:19:04,742 [Ellzey] This was a horrendous crime with a lot of blood evidence. 352 00:19:04,744 --> 00:19:07,245 So it's reasonable to believe that 353 00:19:07,247 --> 00:19:10,448 whoever attacked her also had blood transfer on him. 354 00:19:11,718 --> 00:19:13,317 So we're walking through the apartment 355 00:19:13,319 --> 00:19:16,554 looking for bloody clothes, looking for a pair of shoes 356 00:19:16,556 --> 00:19:19,357 that may have a speck or a drop of blood on them. 357 00:19:19,359 --> 00:19:21,025 And we're looking for weapons, 358 00:19:21,027 --> 00:19:23,895 but, at this point, we just know that it's a sharp instrument. 359 00:19:23,897 --> 00:19:26,063 We still don't know if it's a knife, 360 00:19:26,065 --> 00:19:28,466 or if it's a pair of scissors, 361 00:19:28,468 --> 00:19:30,401 a piece of gla-- We don't know. 362 00:19:30,403 --> 00:19:31,903 We're going through drawers, 363 00:19:31,905 --> 00:19:35,173 we're going through dirty clothes hampers. 364 00:19:35,175 --> 00:19:37,008 We don't see any blood evidence, 365 00:19:37,010 --> 00:19:38,776 we don't see any clothing 366 00:19:38,778 --> 00:19:41,112 that's got any evidence that we're interested in. 367 00:19:42,048 --> 00:19:43,848 And when we get to Nathan's room, 368 00:19:43,850 --> 00:19:45,483 we open up a box. 369 00:19:45,485 --> 00:19:47,852 It's got knives, it has daggers, 370 00:19:47,854 --> 00:19:51,088 it has Japanese throwing stars, 371 00:19:51,090 --> 00:19:52,823 it's got swords. 372 00:19:52,825 --> 00:19:55,226 [Beach] These were high-quality knives. 373 00:19:55,228 --> 00:19:56,727 An unusual collection 374 00:19:56,729 --> 00:19:59,897 for a 19-year-old kid to have under his bed. 375 00:20:00,833 --> 00:20:03,134 And the detectives confronted Nathan. 376 00:20:03,136 --> 00:20:04,902 He goes, "That's what I'm into, 377 00:20:04,904 --> 00:20:09,073 I've been into the ninja mentality, the anime, 378 00:20:09,075 --> 00:20:12,510 that whole genre since I was a little kid." 379 00:20:12,512 --> 00:20:14,345 Weird stuff, weird stuff. 380 00:20:15,348 --> 00:20:17,915 And then we walk into a bathroom 381 00:20:17,917 --> 00:20:22,920 and beside the sink there's a plastic ziplock baggie. 382 00:20:22,922 --> 00:20:26,057 [Beach] You could see what appeared to be matted hair 383 00:20:26,059 --> 00:20:27,558 and what appeared to be blood 384 00:20:27,560 --> 00:20:30,194 on the inside of the ziplock baggie. 385 00:20:30,196 --> 00:20:34,198 That's the moment that I really got excited. 386 00:20:34,200 --> 00:20:36,234 I was hoping and praying, 387 00:20:36,236 --> 00:20:38,035 "Please, let the lab confirm 388 00:20:38,037 --> 00:20:41,706 that these are Shelley's blood and Shelley's hairs." 389 00:20:41,708 --> 00:20:45,009 And I asked Nathan I says, "Whose bathroom is this?" 390 00:20:45,011 --> 00:20:46,410 He says, "It's mine." 391 00:20:46,412 --> 00:20:48,546 I said, "What's that plastic bag there?" 392 00:20:48,548 --> 00:20:50,848 And he looked at it and immediately 393 00:20:50,850 --> 00:20:53,851 had a "Oh, [bleep]!" look on his face. 394 00:20:53,853 --> 00:20:56,120 And he says, "I think I need a lawyer." 395 00:20:57,423 --> 00:20:59,757 That little boy that I was talking to, 396 00:20:59,759 --> 00:21:02,260 now made a statement like a grown man. 397 00:21:02,262 --> 00:21:05,496 Like somebody who has something to hide would say. 398 00:21:06,799 --> 00:21:09,533 We're through. Stick a fork in it, I'm done. 399 00:21:09,535 --> 00:21:13,738 There can be no other guy who committed this murder except Nathan. 400 00:21:18,044 --> 00:21:19,710 [narrator] In the horrific stabbing 401 00:21:19,712 --> 00:21:21,679 of 20-year-old art student Shelley Nance, 402 00:21:21,681 --> 00:21:25,583 investigators are zeroing in on her boyfriend, Nathan Shuck. 403 00:21:26,586 --> 00:21:29,387 You got a kid that was dating the victim, 404 00:21:29,389 --> 00:21:32,657 whose mom was saying the victim was getting ready to broke up with. 405 00:21:32,659 --> 00:21:34,191 So you got motive, 406 00:21:34,193 --> 00:21:35,393 you've got opportunity 407 00:21:35,395 --> 00:21:38,162 because he's still seeing Shelley, 408 00:21:38,164 --> 00:21:40,097 has access to Shelley. 409 00:21:40,099 --> 00:21:43,734 And now you've got potential murder weapons underneath the bed. 410 00:21:43,736 --> 00:21:46,570 And then the cherry on top was this ziplock bag 411 00:21:46,572 --> 00:21:48,406 with blood and hair. 412 00:21:48,408 --> 00:21:53,411 [Ellzey] But I have no idea whose blood that is until we get DNA back on it 413 00:21:53,413 --> 00:21:55,279 and it takes time. 414 00:21:55,281 --> 00:21:57,481 We don't have enough to arrest him for it. 415 00:21:57,483 --> 00:22:01,919 His timeline that he gave us still needs to be validated and checked out. 416 00:22:01,921 --> 00:22:04,722 So I released Nathan that day. 417 00:22:04,724 --> 00:22:06,791 [narrator] To build their case against Nathan, 418 00:22:06,793 --> 00:22:09,694 investigators turn to the autopsy results 419 00:22:09,696 --> 00:22:13,698 which revealed disturbing insights into the killer's mindset. 420 00:22:13,700 --> 00:22:15,866 There were not any observable signs 421 00:22:15,868 --> 00:22:18,536 that she had been sexually assaulted. 422 00:22:18,538 --> 00:22:21,972 But there were 42 individual stab wounds. 423 00:22:21,974 --> 00:22:24,408 Some of them less than an inch in depth. 424 00:22:24,410 --> 00:22:26,744 Some of them over 3 inches. 425 00:22:26,746 --> 00:22:29,080 So it's clear to law enforcement 426 00:22:29,082 --> 00:22:31,982 that the killer enjoyed what he was doing. 427 00:22:31,984 --> 00:22:35,419 [Arntfield] When you see this type of array of stab wounds on a victim's body, 428 00:22:35,421 --> 00:22:36,987 not only the sheer number, 429 00:22:36,989 --> 00:22:40,825 fluctuating depths and locations suggest one of two things. 430 00:22:40,827 --> 00:22:43,060 You're dealing with a sexual sadist 431 00:22:43,062 --> 00:22:44,462 who's obtaining pleasure 432 00:22:44,464 --> 00:22:47,098 and prolonging this for their own gratification 433 00:22:47,100 --> 00:22:49,100 or, alternatively, you're dealing with someone 434 00:22:49,102 --> 00:22:52,503 who has such deep-seated, visceral hatred of the victim 435 00:22:52,505 --> 00:22:55,639 that they want to ensure the maximum level of agony. 436 00:22:57,043 --> 00:23:00,611 [Ellzey] To continue their investigation into Nathan's possible role 437 00:23:00,613 --> 00:23:02,146 in the murder of Shelley Nance, 438 00:23:02,148 --> 00:23:04,548 they're gonna talk to everybody they could talk to, 439 00:23:04,550 --> 00:23:07,852 to find out, "What do you know about Nathan?" 440 00:23:07,854 --> 00:23:11,188 [Ellzey] During the initial interview that I had with Nathan, 441 00:23:11,190 --> 00:23:14,125 he told me that he shared an apartment with another male. 442 00:23:14,127 --> 00:23:17,228 He identified him as a guy named Daniel. 443 00:23:17,230 --> 00:23:20,164 [Beach] Daniel Willyam was not your typical Art Institute student. 444 00:23:20,166 --> 00:23:21,599 He was five to six years older. 445 00:23:21,601 --> 00:23:24,735 He'd been in the Navy. He's seen more of the world. 446 00:23:25,505 --> 00:23:26,504 I look at Daniel, 447 00:23:26,506 --> 00:23:29,140 I see a little bitty short, pudgy, 448 00:23:29,142 --> 00:23:31,642 non-threatening, soft-spoken... 449 00:23:51,497 --> 00:23:55,099 [Ellzey] When I talk to Daniel about the relationship he has with Nathan, 450 00:23:55,101 --> 00:23:56,700 it just gets weirder. 451 00:23:56,702 --> 00:23:59,203 [Beach] Daniel told the police he was openly gay, 452 00:23:59,205 --> 00:24:04,041 but assured the police that his relationship with Nathan was strictly platonic. 453 00:24:04,043 --> 00:24:08,145 [Ellzey] But Daniel let it be known that he doted over Nathan. 454 00:24:08,147 --> 00:24:12,016 Cooked him breakfast, made sure that he had a lunch to take to school. 455 00:24:12,018 --> 00:24:15,519 When he was available he would shuttle him to and forth from class. 456 00:24:15,521 --> 00:24:19,423 I mean, he did everything but wash him and wipe his butt. 457 00:24:19,425 --> 00:24:23,027 Come to find out that Daniel knew Shelley, he didn't like Shelley, 458 00:24:23,029 --> 00:24:26,397 he expressed that he didn't think Shelley was good for Nathan, 459 00:24:26,399 --> 00:24:28,532 that she was a distractor. 460 00:24:28,534 --> 00:24:31,902 [Beach] Nathan, it appeared to Daniel, had become obsessed with Shelley, 461 00:24:31,904 --> 00:24:33,737 that he began stalking Shelley, 462 00:24:33,739 --> 00:24:39,543 that Nathan's schoolwork was suffering because of his deep feelings for Shelley. 463 00:24:39,545 --> 00:24:43,380 [Ellzey] And it's like a parent talking to a kid in a troubled relationship. 464 00:24:43,382 --> 00:24:45,749 "Stay away from this person, they're not good for you. 465 00:24:45,751 --> 00:24:46,917 You know, you need to cut them loose. 466 00:24:46,919 --> 00:24:48,752 And you need to focus on school." 467 00:24:48,754 --> 00:24:53,924 Just a very weird, unusual situation. 468 00:24:53,926 --> 00:24:56,927 [narrator] Intrigued with the nature of their close friendship, 469 00:24:56,929 --> 00:25:01,732 detectives question Daniel for his account of events the day of the murder. 470 00:25:01,734 --> 00:25:03,501 [Ellzey] "What time did Nathan get here?" 471 00:25:03,503 --> 00:25:07,004 "He got here yesterday morning when his mom dropped him off. 472 00:25:07,006 --> 00:25:09,173 I took him to school and dropped him off." 473 00:25:09,175 --> 00:25:10,407 I said, "What time was that?" 474 00:25:10,409 --> 00:25:11,842 He said, "8:30." 475 00:25:11,844 --> 00:25:14,345 I said, "Okay. What did you do next?" 476 00:25:14,347 --> 00:25:17,748 He said, "Well, I had an assignment that I had to take care of." 477 00:25:17,750 --> 00:25:19,950 He said that he had to go photograph something 478 00:25:19,952 --> 00:25:22,686 at one of our local parks called White Rock Lake. 479 00:25:22,688 --> 00:25:26,190 But he forgot his camera, which is kind of strange. 480 00:25:26,192 --> 00:25:28,192 I asked him what he did when he got to the lake 481 00:25:28,194 --> 00:25:31,462 and he said, "Well, I went to my friend Jessica's house." 482 00:25:31,464 --> 00:25:33,898 I said, "Was she home?" He says, "No." 483 00:25:33,900 --> 00:25:34,832 "What did you do then?" 484 00:25:34,834 --> 00:25:36,500 "I just turned around and went home." 485 00:25:36,502 --> 00:25:38,502 "What time would you have got back home?" 486 00:25:38,504 --> 00:25:40,471 He said, "Around 9:00, something like that." 487 00:25:40,473 --> 00:25:42,573 He wasn't sure. 488 00:25:42,575 --> 00:25:45,442 [narrator] Daniel then reveals that he is also good friends 489 00:25:45,444 --> 00:25:48,612 with Ashley Olvera, Shelley's roommate. 490 00:25:48,614 --> 00:25:52,016 This immediately piques the investigator's interest. 491 00:25:52,018 --> 00:25:55,586 Daniel told police that Ashley confided in Daniel that 492 00:25:55,588 --> 00:25:59,523 she was sexually attracted to Shelley. 493 00:25:59,525 --> 00:26:04,094 This is the first time that the Dallas Police had heard anything about that. 494 00:26:04,096 --> 00:26:08,165 [Ellzey] He summed it up as maybe she was having some thoughts of being gay 495 00:26:08,167 --> 00:26:12,570 or was contemplating experimenting with a gay relationship. 496 00:26:12,572 --> 00:26:14,805 [narrator] Armed with this new information, 497 00:26:14,807 --> 00:26:18,342 detectives begin to consider a new theory of the crime. 498 00:26:18,344 --> 00:26:20,578 Could Ashley have had a crush on Shelley 499 00:26:20,580 --> 00:26:23,647 that wasn't reciprocated, leading to murder? 500 00:26:23,649 --> 00:26:27,618 [Ellzey] This case has got twists and turns, crazy motives, 501 00:26:27,620 --> 00:26:29,687 unusual relationships, 502 00:26:29,689 --> 00:26:31,255 and it just gets weirder. 503 00:26:32,725 --> 00:26:36,026 We asked Ashley about what we had learned from Daniel 504 00:26:36,028 --> 00:26:39,496 as to her struggling with her sexuality. 505 00:26:39,498 --> 00:26:42,967 She validated that that was a true statement. 506 00:26:42,969 --> 00:26:47,304 I asked her if she was, at any time, had any romantic feelings for Shelley. 507 00:26:47,306 --> 00:26:48,973 She said, "Absolutely not." 508 00:26:48,975 --> 00:26:50,975 Her and Shelley didn't have anything in common 509 00:26:50,977 --> 00:26:53,243 other than they shared the same roof 510 00:26:53,245 --> 00:26:54,645 and they went to the same class. 511 00:27:09,996 --> 00:27:11,862 [Beach] When they specifically asked her about 512 00:27:11,864 --> 00:27:14,064 Daniel's portrayal of the relationship 513 00:27:14,066 --> 00:27:18,435 between Nathan and Shelley and how Nathan had become obsessed, 514 00:27:18,437 --> 00:27:21,071 Ashley painted a completely different picture 515 00:27:21,073 --> 00:27:24,241 of the relationship between Nathan and Shelley 516 00:27:24,243 --> 00:27:25,776 that Daniel was trying to portray. 517 00:27:40,760 --> 00:27:41,959 [Gindratt] The roommate tells us that 518 00:27:41,961 --> 00:27:44,495 if anyone is obsessed with anyone else, 519 00:27:44,497 --> 00:27:47,631 it's Daniel who seems to be obsessed with Nathan. 520 00:27:47,633 --> 00:27:49,566 [narrator] With Daniel and Ashley offering 521 00:27:49,568 --> 00:27:51,802 two different versions of events, 522 00:27:51,804 --> 00:27:54,772 detectives' suspicion are aroused. 523 00:27:54,774 --> 00:27:57,207 [Keira Stockdale] Typically, it's human behavior to lie. 524 00:27:57,209 --> 00:27:58,642 The question is, "Why?" 525 00:27:58,644 --> 00:28:00,477 And are we lying because we're ashamed 526 00:28:00,479 --> 00:28:02,079 and we're trying to conceal information 527 00:28:02,081 --> 00:28:03,814 that's not related to the crime? 528 00:28:03,816 --> 00:28:05,349 Or are we lying because we have 529 00:28:05,351 --> 00:28:06,784 guilty knowledge or involvement 530 00:28:06,786 --> 00:28:09,019 and we're trying to cover up our actions? 531 00:28:13,626 --> 00:28:14,625 [narrator] In the brutal murder 532 00:28:14,627 --> 00:28:17,361 of 20-year-old art student, Shelley Nance, 533 00:28:17,363 --> 00:28:20,531 detectives have two suspects in their crosshairs. 534 00:28:20,533 --> 00:28:22,366 Her boyfriend, Nathan Shuck, 535 00:28:22,368 --> 00:28:25,369 and her roommate, Ashley Olvera. 536 00:28:25,371 --> 00:28:29,673 But new information has introduced a possible third suspect. 537 00:28:29,675 --> 00:28:32,676 Daniel didn't want Nathan to be alone with Shelley. 538 00:28:32,678 --> 00:28:35,746 Daniel expressed dissatisfaction to Ashley 539 00:28:35,748 --> 00:28:39,116 about Shelley being around Nathan. 540 00:28:39,118 --> 00:28:40,818 [Cooper] He constantly talks about it. 541 00:28:40,820 --> 00:28:44,288 It always ends up the conversation being about Shelley 542 00:28:44,290 --> 00:28:46,657 and how much he despises her. 543 00:28:46,659 --> 00:28:49,927 It's non-stop negativity towards Shelley. 544 00:28:49,929 --> 00:28:54,765 [Ellzey] Shelley has shared with Ashley that Daniel had texted Shelley 545 00:28:54,767 --> 00:28:56,633 asking could he go along 546 00:28:56,635 --> 00:28:58,669 and be involved when they went out. 547 00:28:58,671 --> 00:29:02,306 Like the weekend that they went to the convention. 548 00:29:02,308 --> 00:29:04,975 Not only on that occasion, but prior occasions, 549 00:29:04,977 --> 00:29:06,944 and she felt that a little weird. 550 00:29:06,946 --> 00:29:10,814 You know, you don't invite a third wheel out on a date. 551 00:29:10,816 --> 00:29:14,451 Shelley got vibrations that something wasn't right. 552 00:29:14,453 --> 00:29:17,988 She sensed that if Daniel had his way, 553 00:29:17,990 --> 00:29:20,657 he would have liked to see her out of the picture 554 00:29:20,659 --> 00:29:22,459 so he could pursue Nathan 555 00:29:22,461 --> 00:29:25,629 and maybe escalate that to another level. 556 00:29:25,631 --> 00:29:27,164 [narrator] Ashley then reveals that 557 00:29:27,166 --> 00:29:28,899 on the day Shelley was murdered, 558 00:29:28,901 --> 00:29:31,769 Daniel bombarded her with texts. 559 00:29:31,771 --> 00:29:34,471 [Ellzey] We found out that he had texted Ashley 560 00:29:34,473 --> 00:29:37,908 at 10:02 a.m. and they had a conversation. 561 00:29:37,910 --> 00:29:39,309 And basically it was questions about, 562 00:29:39,311 --> 00:29:40,611 "Where you at? What are you doing? 563 00:29:40,613 --> 00:29:43,814 Do you want to go for lunch? Do you wanna meet me?" 564 00:29:43,816 --> 00:29:47,184 She said, "No. I don't think so. I'm in class." 565 00:29:47,186 --> 00:29:52,790 And then he texts Ashley again about two hours later, exactly at 12:03 p.m., 566 00:29:52,792 --> 00:29:54,124 and he's asking her again, 567 00:29:54,126 --> 00:29:56,193 "Are you still at school? Are you going home? 568 00:29:56,195 --> 00:29:58,328 Are you sure you don't wanna go for lunch?" 569 00:29:58,330 --> 00:30:03,167 She's like, "No. I'm fine. I'm staying at school. I'll eat lunch here." 570 00:30:03,169 --> 00:30:07,938 [Beach] This was unusual for Daniel to be sending a flurry of texts to Ashley. 571 00:30:07,940 --> 00:30:12,943 Shelley Nance was murdered sometime between 9:00 a.m. and noon. 572 00:30:12,945 --> 00:30:15,145 And with that timeframe in mind, 573 00:30:15,147 --> 00:30:19,249 the text messages, now, between Daniel Willyam and Ashley Olvera 574 00:30:19,251 --> 00:30:21,151 took on added significance. 575 00:30:21,153 --> 00:30:23,220 [Ellzey] What we implied from that is that he was 576 00:30:23,222 --> 00:30:25,522 trying to make sure that she wasn't at home 577 00:30:25,524 --> 00:30:27,958 and that where she was at between those hours. 578 00:30:29,695 --> 00:30:31,328 [Beach] Before the interview wrapped up, 579 00:30:31,330 --> 00:30:33,831 the detective asked Ashley if there was anything else 580 00:30:33,833 --> 00:30:35,332 she thought they would be interested in, 581 00:30:35,334 --> 00:30:37,134 that might help in the investigation. 582 00:30:48,414 --> 00:30:51,048 Ashley remembered about 10 days before the murder 583 00:30:51,050 --> 00:30:54,218 that Daniel had locked his keys in his own car, 584 00:30:54,220 --> 00:30:57,054 he was in a hurry and he asked to borrow Ashley's car. 585 00:31:08,901 --> 00:31:11,335 [Ellzey] I asked her to check to see if it was still there 586 00:31:11,337 --> 00:31:12,469 and she said it was still there, 587 00:31:12,471 --> 00:31:15,172 but she thought it had been taken off 588 00:31:15,174 --> 00:31:17,474 and put back on and I asked her why. 589 00:31:17,476 --> 00:31:19,309 And then that's when she mentioned, 590 00:31:19,311 --> 00:31:21,845 "It used to be in the middle but now it's on the end 591 00:31:21,847 --> 00:31:23,814 and it used to be flipped this way, 592 00:31:23,816 --> 00:31:25,082 but it's flipped the other way. 593 00:31:25,084 --> 00:31:26,683 And I've realized now that 594 00:31:26,685 --> 00:31:28,452 when I put my key in something was different, 595 00:31:28,454 --> 00:31:31,021 but I didn't realize it until you just mentioned it." 596 00:31:32,091 --> 00:31:33,991 There was no signs of forced entry. 597 00:31:33,993 --> 00:31:36,260 So Daniel had the opportunity 598 00:31:36,262 --> 00:31:39,229 to have a key made if he had wanted to. 599 00:31:39,231 --> 00:31:41,865 Based on the time that this occurred, 600 00:31:41,867 --> 00:31:43,033 he has a motive, 601 00:31:43,035 --> 00:31:44,501 he has the opportunity, 602 00:31:44,503 --> 00:31:47,804 he has the means to gain entry without being detected. 603 00:31:47,806 --> 00:31:50,707 Daniel's looking pretty good right now. 604 00:31:50,709 --> 00:31:54,044 [Stockdale] It's entirely possible for somebody to be in a love triangle 605 00:31:54,046 --> 00:31:57,714 where somebody is, you know, trying to obtain the affection 606 00:31:57,716 --> 00:31:59,750 from one person and upset 607 00:31:59,752 --> 00:32:03,120 because they feel potentially rejected and left out. 608 00:32:03,122 --> 00:32:07,624 It's just a recipe for violence and murder. 609 00:32:07,626 --> 00:32:09,626 [Ellzey] So now we have three suspects. 610 00:32:09,628 --> 00:32:10,894 We have Ashley, 611 00:32:10,896 --> 00:32:12,596 we have Nathan 612 00:32:12,598 --> 00:32:14,598 and we have Daniel. 613 00:32:14,600 --> 00:32:17,935 Now we have to go through the process of elimination. 614 00:32:17,937 --> 00:32:21,305 The detectives were able to validate through witness interviews, 615 00:32:21,307 --> 00:32:23,774 time stamps and surveillance video 616 00:32:23,776 --> 00:32:26,043 at the school, that Ashley was in school 617 00:32:26,045 --> 00:32:28,078 between 9:00 a.m. and 12-noon. 618 00:32:29,682 --> 00:32:31,648 So, she's got a pretty good alibi. 619 00:32:33,986 --> 00:32:36,720 [narrator] With Ashley eliminated as a suspect, 620 00:32:36,722 --> 00:32:40,223 investigators shift their focus to Daniel Willyam. 621 00:32:40,225 --> 00:32:43,961 They want to go over again Daniel's timeline about the events 622 00:32:43,963 --> 00:32:46,596 of the morning of September the 10th. 623 00:32:46,598 --> 00:32:48,865 And I think Daniel was confident. 624 00:32:48,867 --> 00:32:52,369 He had no problem talking to police a second time. 625 00:32:52,371 --> 00:32:54,838 [Ellzey] And he tells us, "Yes, I went to White Rock Lake, 626 00:32:54,840 --> 00:32:57,140 directly there to do a photoshoot 627 00:32:57,142 --> 00:33:00,310 after I dropped Nathan off at school." 628 00:33:00,312 --> 00:33:02,446 I asked him what time he got to White Rock Lake. 629 00:33:02,448 --> 00:33:05,148 He said," Around 8:30. Maybe a little bit after." 630 00:33:05,884 --> 00:33:08,051 "Okay. What did you do then?" 631 00:33:08,053 --> 00:33:12,689 "Uh, well, I went to Walmart." 632 00:33:13,359 --> 00:33:14,992 Walmart? 633 00:33:14,994 --> 00:33:17,728 [Beach] Just that little, seemingly innocuous point 634 00:33:17,730 --> 00:33:19,730 about Daniel going to the Walmart, 635 00:33:19,732 --> 00:33:21,331 they said, "Wait a minute. He didn't say anything 636 00:33:21,333 --> 00:33:24,701 about going to the Walmart the first time we talked to him." 637 00:33:24,703 --> 00:33:27,337 [Ellzey] "How long was you at Walmart?" "Not very long." 638 00:33:27,339 --> 00:33:28,705 "What did you buy at Walmart?" 639 00:33:28,707 --> 00:33:30,974 He said, "Well, I bought some hair color, 640 00:33:30,976 --> 00:33:33,710 I bought something else, two or three items." 641 00:33:34,713 --> 00:33:36,546 "What happened after you left Walmart?" 642 00:33:36,548 --> 00:33:38,782 "Well, I went to see a girl 643 00:33:38,784 --> 00:33:40,550 that lives in the Falls apartments." 644 00:33:40,552 --> 00:33:41,485 "What for?" 645 00:33:41,487 --> 00:33:42,652 "Well, I just went to visit her." 646 00:33:42,654 --> 00:33:44,521 So I asked him, "What time did you get there?" 647 00:33:44,523 --> 00:33:46,757 "I don't know. 11:00, 11:30." 648 00:33:46,759 --> 00:33:49,026 I said, "Was she home?" "No." 649 00:33:49,028 --> 00:33:53,263 Now this is the same complex that Shelley lives in. 650 00:33:53,265 --> 00:33:55,999 [Beach] And this is like a double "whoops" now for the police. 651 00:33:56,001 --> 00:33:59,036 Of all the apartment complexes in Dallas County, 652 00:33:59,038 --> 00:34:00,737 he's at the apartment complex 653 00:34:00,739 --> 00:34:03,273 at about the time when Shelley Nance is murdered 654 00:34:03,275 --> 00:34:06,076 on September the 10th of 2009. 655 00:34:06,078 --> 00:34:09,079 So the fact that he didn't add that before 656 00:34:09,081 --> 00:34:12,783 was definitely a bomb that we were taken aback by. 657 00:34:14,820 --> 00:34:17,120 [Beach] So, let's just say that the interest 658 00:34:17,122 --> 00:34:20,490 in Daniel Willyam now is becoming real important. 659 00:34:21,326 --> 00:34:22,426 [Ellzey] Time is wasting. 660 00:34:22,494 --> 00:34:25,962 I've got a monster out there who did something hideous 661 00:34:25,964 --> 00:34:27,564 that needs off the street quickly. 662 00:34:31,870 --> 00:34:33,503 [narrator] In the brutal murder of Shelley Nance, 663 00:34:33,505 --> 00:34:36,773 police have a surprising new suspect in their sights... 664 00:34:36,775 --> 00:34:39,676 The roommate of Shelley's boyfriend, Nathan, 665 00:34:39,678 --> 00:34:42,946 a fellow art student named Daniel Willyam. 666 00:34:42,948 --> 00:34:44,347 By his own admission, 667 00:34:44,349 --> 00:34:46,383 he put hisself at the crime scene 668 00:34:46,385 --> 00:34:48,552 during the time this murder occurred. 669 00:34:48,554 --> 00:34:51,888 [narrator] With questionable new information coming to light, 670 00:34:51,890 --> 00:34:54,324 detectives dig into Daniel's story 671 00:34:54,326 --> 00:34:56,960 to see if his timeline checks out. 672 00:34:56,962 --> 00:34:59,896 Walmarts, they have surveillance video. 673 00:34:59,898 --> 00:35:01,264 [Ellzey] You can see Daniel. 674 00:35:01,266 --> 00:35:03,166 He's got his phone. He's texting. 675 00:35:03,168 --> 00:35:04,668 This is at 10:02. 676 00:35:04,670 --> 00:35:07,270 It corresponds with the text he's sending Ashley 677 00:35:07,272 --> 00:35:10,774 asking her where she's at, what she's doing, does she wanna go to lunch. 678 00:35:10,776 --> 00:35:13,543 [Beach] And there he is. Just like he said he was. 679 00:35:13,545 --> 00:35:15,712 Daniel told him he purchased a bar of soap, 680 00:35:15,714 --> 00:35:18,415 he told the police he purchased a hair dye, 681 00:35:18,417 --> 00:35:21,785 what he didn't tell the police was that he purchased another item 682 00:35:21,787 --> 00:35:26,756 and that was a package of blue nitrile gloves. 683 00:35:26,758 --> 00:35:29,693 We remembered that little bitty blue piece 684 00:35:29,695 --> 00:35:33,096 of nitrile glove material found on her body. 685 00:35:34,500 --> 00:35:36,933 [Beach] The police were able to go back out and buy 686 00:35:36,935 --> 00:35:40,103 a duplicate box of the blue nitrile gloves 687 00:35:40,105 --> 00:35:43,807 with the hopes of being able to conduct a forensic comparison 688 00:35:43,809 --> 00:35:47,277 between the piece of blue plastic found on Shelley Nance's arm 689 00:35:47,279 --> 00:35:50,981 and the blue nitrile gloves that Daniel Willyam had bought. 690 00:35:50,983 --> 00:35:52,749 [narrator] Then the results come in 691 00:35:52,751 --> 00:35:55,752 from the forensic evidence collected at the crime scene 692 00:35:55,754 --> 00:35:58,788 and from Nathan and Daniel's apartment. 693 00:35:58,790 --> 00:36:01,024 [Beach] Probably the most significant finding 694 00:36:01,026 --> 00:36:02,792 of all the items seized 695 00:36:02,794 --> 00:36:05,829 at the scene of Shelley Nance's murder is, number one, 696 00:36:05,831 --> 00:36:08,899 the blood evidence found there in the sink 697 00:36:08,901 --> 00:36:10,934 in the bathroom in her apartment, 698 00:36:10,936 --> 00:36:15,572 and the DNA came back that that was the blood of Shelley Nance. 699 00:36:15,574 --> 00:36:17,841 Of equal importance the police got back 700 00:36:17,843 --> 00:36:19,276 information concerning 701 00:36:19,278 --> 00:36:22,112 whose DNA it was in the ziplock baggie 702 00:36:22,114 --> 00:36:23,246 with the blood and hair in it 703 00:36:23,248 --> 00:36:24,414 the police found 704 00:36:24,416 --> 00:36:26,249 in the bathroom of Nathan Shuck. 705 00:36:26,251 --> 00:36:30,220 And that also came back to be the DNA of Shelley Nance. 706 00:36:31,023 --> 00:36:32,956 Now you have the DNA, 707 00:36:32,958 --> 00:36:35,492 the blood and hair of the murder victim 708 00:36:35,494 --> 00:36:37,661 in the apartment of Nathan Shuck 709 00:36:37,663 --> 00:36:41,498 and in the apartment of Daniel Willyam. 710 00:36:41,500 --> 00:36:46,369 [narrator] Detectives now know that either Nathan or Daniel killed Shelley Nance. 711 00:36:46,371 --> 00:36:48,572 But which one had the opportunity? 712 00:36:48,574 --> 00:36:52,008 Nathan is validated being at school by surveillance video 713 00:36:52,010 --> 00:36:54,177 and other students put him in class 714 00:36:54,179 --> 00:36:56,413 between 9:00 a.m. and 2:00 p.m. the day 715 00:36:56,415 --> 00:36:57,714 the murder occurred. 716 00:36:57,716 --> 00:37:00,217 So after we're able to establish an alibi 717 00:37:00,219 --> 00:37:02,552 that Nathan could not have did it, 718 00:37:02,554 --> 00:37:05,021 the only person left is Daniel. 719 00:37:06,458 --> 00:37:08,525 So we have a third interview with Daniel. 720 00:37:09,027 --> 00:37:10,160 He's tense. 721 00:37:10,162 --> 00:37:11,161 He's nervous. 722 00:37:11,163 --> 00:37:12,896 And I dig into him hard. 723 00:37:12,898 --> 00:37:14,364 I tell him he's a murderer. 724 00:37:14,366 --> 00:37:15,799 I tell him he did it. 725 00:37:15,801 --> 00:37:17,367 After we caught him in lies, 726 00:37:17,369 --> 00:37:19,502 we've already pulled his surveillance video 727 00:37:19,504 --> 00:37:21,771 the day before Shelley was found dead 728 00:37:21,773 --> 00:37:24,507 that he was at Walmart buying plastic gloves. 729 00:37:25,577 --> 00:37:27,310 I pulled a picture of Shelley out 730 00:37:27,312 --> 00:37:29,679 and I show him a picture of the crime scene. 731 00:37:29,681 --> 00:37:33,717 It was gruesome to look at and he just covered his face and cried like a baby. 732 00:37:33,719 --> 00:37:36,419 Said he didn't do it. Didn't do it. No, he didn't do it. 733 00:37:57,509 --> 00:38:02,946 [narrator] Then a final piece of forensic evidence seals Daniel's fate. 734 00:38:02,948 --> 00:38:04,648 The most important piece of evidence 735 00:38:04,650 --> 00:38:07,384 was that little bitty blue speck of plastic. 736 00:38:07,386 --> 00:38:10,720 The lab was able to take that little piece of plastic 737 00:38:10,722 --> 00:38:13,723 and scientifically compare it to the box of gloves 738 00:38:13,725 --> 00:38:17,994 that Daniel was observed buying at Walmart on videotape. 739 00:38:17,996 --> 00:38:23,566 And scientifically confirm that that piece of plastic was of the same material, 740 00:38:23,568 --> 00:38:27,470 same roll, same consistency 741 00:38:27,472 --> 00:38:31,675 of material that those gloves that he purchased was from. 742 00:38:31,677 --> 00:38:33,310 So that put him at the crime scene. 743 00:38:34,179 --> 00:38:36,646 I'm telling you, he had means to do it, 744 00:38:36,648 --> 00:38:38,081 he had motive to do it, 745 00:38:38,083 --> 00:38:39,916 he had opportunity to do it. 746 00:38:39,918 --> 00:38:41,785 And by his own admission, 747 00:38:41,787 --> 00:38:43,653 he put hisself at the crime scene 748 00:38:43,655 --> 00:38:45,322 during the time this murder occurred. 749 00:38:46,091 --> 00:38:47,657 [Beach] He hated that girl. 750 00:38:47,659 --> 00:38:51,828 She was standing in the way between Daniel and Nathan Shuck, 751 00:38:51,830 --> 00:38:53,997 a boy that he was interested in romantically. 752 00:38:55,033 --> 00:38:57,334 [narrator] Detectives are now able to piece together 753 00:38:57,336 --> 00:38:59,903 Shelley Nance's final 24 hours. 754 00:39:01,406 --> 00:39:04,074 [Beach] We know that Shelley and her mom spoke with each other 755 00:39:04,076 --> 00:39:07,711 on the night of Wednesday, September the 9th. 756 00:39:07,713 --> 00:39:09,512 [Ellzey] After the conversation with her mom, 757 00:39:09,514 --> 00:39:11,848 Shelley stayed up all night long 758 00:39:11,850 --> 00:39:15,985 and on her computer from midnight till 6:00 a.m. the next morning. 759 00:39:15,987 --> 00:39:18,621 [Gindratt] She falls asleep while using the laptop 760 00:39:18,623 --> 00:39:23,626 until Ashley goes to school that morning at 8:00. 761 00:39:23,628 --> 00:39:27,530 [Ellzey] Daniel dropped Nathan off at school about 8:30. 762 00:39:27,532 --> 00:39:29,399 Then he said he went to White Rock Lake, 763 00:39:30,035 --> 00:39:31,201 went to Walmart. 764 00:39:32,337 --> 00:39:33,803 [Beach] Daniel Willyam purchased 765 00:39:33,805 --> 00:39:35,772 a bar of soap, hair dye, 766 00:39:35,774 --> 00:39:39,676 and a box of blue nitrile plastic gloves. 767 00:39:39,678 --> 00:39:42,979 Daniel was texting Ashley repeatedly 768 00:39:42,981 --> 00:39:45,281 between 10:02 a.m. that morning 769 00:39:45,283 --> 00:39:47,517 and about 12:00 that morning 770 00:39:47,519 --> 00:39:51,054 asking about going to lunch with her, where she is. 771 00:39:51,056 --> 00:39:54,824 It's apparent that Daniel is very concerned about Ashley Olvera's whereabouts 772 00:39:54,826 --> 00:39:56,893 during this timeframe. 773 00:39:56,895 --> 00:40:00,697 Daniel ended up at the Falls apartments around 11:00. 774 00:40:01,700 --> 00:40:02,866 [Beach] He had made a copy 775 00:40:02,868 --> 00:40:05,368 of Ashley Olvera's front door key. 776 00:40:05,370 --> 00:40:07,370 He let himself into that apartment, 777 00:40:07,372 --> 00:40:08,838 and went back to that bedroom 778 00:40:08,840 --> 00:40:10,840 where that little girl was sleeping. 779 00:40:10,842 --> 00:40:13,243 [Ellzey] He was able to enter the apartment undetected, 780 00:40:13,879 --> 00:40:15,211 pounce on her back, 781 00:40:15,847 --> 00:40:17,580 stab her 42 times. 782 00:40:19,017 --> 00:40:21,451 He'd worn those blue plastic gloves to make sure 783 00:40:21,453 --> 00:40:23,653 he didn't leave any fingerprints. 784 00:40:23,655 --> 00:40:27,657 He didn't see that little piece of blue plastic 785 00:40:27,659 --> 00:40:30,160 that had come off during the savage assault. 786 00:40:33,198 --> 00:40:37,700 [Cooper] So while Daniel's alibi maybe wasn't locked down super tight. 787 00:40:37,702 --> 00:40:41,671 I think it shows that he had a lot of pre-planning, 788 00:40:41,673 --> 00:40:43,173 forethought, premeditation, 789 00:40:43,175 --> 00:40:45,208 whatever word you wanna put on it. 790 00:40:45,210 --> 00:40:48,511 [Arntfield] Nathan's affection is shown towards Shelley and not Daniel, 791 00:40:48,513 --> 00:40:52,515 who is, for all intents and purposes, acting like a romantic partner 792 00:40:52,517 --> 00:40:56,085 and doing favors for him and running errands for him. 793 00:40:56,087 --> 00:40:57,921 That Nathan isn't going to recognize 794 00:40:57,923 --> 00:41:00,223 his affectionate gestures for what they are 795 00:41:00,225 --> 00:41:02,325 and ultimately Daniel decides that 796 00:41:02,327 --> 00:41:05,862 he needs to remove Shelley from the equation. 797 00:41:05,864 --> 00:41:09,766 [Cooper] It was just a purely rage-filled revenge attack 798 00:41:09,768 --> 00:41:11,768 because he loathed Shelley. 799 00:41:19,711 --> 00:41:22,545 [narrator] On December 8th, 2009, 800 00:41:22,547 --> 00:41:28,117 Daniel Willyam is charged with the first-degree murder of Samantha "Shelley" Nance. 801 00:41:28,119 --> 00:41:31,354 [Ellzey] I've seen things did to a human body that you can't imagine, 802 00:41:31,356 --> 00:41:33,923 but the scene of that little girl laying in that bed, 803 00:41:33,925 --> 00:41:35,592 with those stab wounds, 804 00:41:35,594 --> 00:41:36,759 I'll never forget it. 805 00:41:37,596 --> 00:41:38,895 [narrator] He's found guilty 806 00:41:38,897 --> 00:41:40,630 and sentenced to life in prison. 807 00:41:41,633 --> 00:41:42,999 [Beach] The timeline was there 808 00:41:43,001 --> 00:41:45,168 from Daniel Willyam's own cell phone, 809 00:41:45,170 --> 00:41:47,604 to the surveillance video at Walmart 810 00:41:47,606 --> 00:41:51,007 to the medical examiner's opinion on time of death. 811 00:41:51,009 --> 00:41:54,477 Everything fit like a blue nitrile glove. 812 00:41:56,348 --> 00:41:57,680 [Ellzey] I went to Shelley's funeral. 813 00:41:57,682 --> 00:41:59,249 She's the only victim 814 00:41:59,251 --> 00:42:00,984 that I've worked in my entire career 815 00:42:00,986 --> 00:42:03,086 that I went to her funeral. I did. 816 00:42:03,088 --> 00:42:05,622 I just felt I needed to be there. 817 00:42:06,992 --> 00:42:08,358 [Beach] The good thing for me, 818 00:42:08,360 --> 00:42:11,027 when I had recurring nightmares about my daughter, 819 00:42:11,029 --> 00:42:12,629 is I could wake up 820 00:42:12,631 --> 00:42:14,664 and realize it was just a nightmare. 821 00:42:14,666 --> 00:42:15,865 That she was still around. 822 00:42:16,301 --> 00:42:18,401 Sam and Cynthia, 823 00:42:18,403 --> 00:42:20,003 and Shelley's sisters, 824 00:42:20,005 --> 00:42:21,671 they don't have that luxury. 825 00:42:21,673 --> 00:42:24,007 So, yeah, this was personal. 826 00:42:24,009 --> 00:42:26,809 It was personal back in 2009. 827 00:42:26,811 --> 00:42:28,678 It'll be personal till the day I die.