1 00:00:05,138 --> 00:00:09,608 [Pamela Hofsass] It was clear that whoever committed the crime was known to her. 2 00:00:09,610 --> 00:00:11,276 And was allowed in by her. 3 00:00:12,312 --> 00:00:13,145 [woman yelling] 4 00:00:14,214 --> 00:00:15,748 Her career was blossoming. 5 00:00:15,750 --> 00:00:17,583 This is my cubicle. My computer. 6 00:00:17,585 --> 00:00:19,885 She loved life. Loved her family. 7 00:00:19,887 --> 00:00:22,087 She really was effervescent. 8 00:00:22,089 --> 00:00:23,522 She was quite special. 9 00:00:23,524 --> 00:00:27,393 It had all the hallmarks of a frenzied assault 10 00:00:27,395 --> 00:00:31,397 with multiple strikes and a lot of bloodshed. 11 00:00:31,399 --> 00:00:35,234 It seemed to me like it was a rage killing. 12 00:00:35,236 --> 00:00:36,735 The letter that he read 13 00:00:36,737 --> 00:00:40,072 at the memorial service stated, "If I killed Lisa..." 14 00:00:40,074 --> 00:00:42,174 It was very, very strange. 15 00:00:42,176 --> 00:00:45,344 The perpetrator stayed in the house for over 30 hours 16 00:00:45,346 --> 00:00:49,581 and approximately 2 feet of hair was cut and taken. 17 00:00:49,583 --> 00:00:52,484 [man] Removing her hair would have just intensified 18 00:00:52,486 --> 00:00:54,620 the killer's obsessive tendencies. 19 00:00:54,622 --> 00:00:56,588 The need to own her, even in death. 20 00:00:56,590 --> 00:00:58,957 It was 13 years since the homicide 21 00:00:58,959 --> 00:01:01,593 and then they said, "We have a perfect match. 22 00:01:01,595 --> 00:01:03,562 We finally got the guy." 23 00:01:05,698 --> 00:01:07,733 [narrator] Every day in North America 24 00:01:07,735 --> 00:01:10,269 dozens of people are murdered. 25 00:01:10,271 --> 00:01:12,738 The key to solving the toughest of these homicides 26 00:01:12,740 --> 00:01:16,608 lies in the final 24 hours of the victim's life. 27 00:01:16,610 --> 00:01:22,247 To crack the case, detectives must reconstruct that critical timeline. 28 00:01:22,249 --> 00:01:23,849 The minutes and hours containing evidence 29 00:01:23,851 --> 00:01:28,720 that can help unlock the mystery and catch the killer. 30 00:01:37,330 --> 00:01:39,731 [narrator] San Francisco, California, 31 00:01:39,733 --> 00:01:42,501 sparkles with color and diversity. 32 00:01:42,503 --> 00:01:45,304 And in the late 1990s, 33 00:01:45,306 --> 00:01:46,905 the upscale neighborhood of Diamond Heights 34 00:01:46,907 --> 00:01:50,342 is one of the city's crown jewels. 35 00:01:50,344 --> 00:01:52,511 [Hofsass] San Francisco is bustling in '98. 36 00:01:52,513 --> 00:01:55,347 And one of the reasons people move to Diamond Heights 37 00:01:55,349 --> 00:01:59,585 is to see the expansive view of the city from above. 38 00:01:59,587 --> 00:02:01,720 There is a panoramic view of the bay. 39 00:02:01,722 --> 00:02:04,223 It was considered a very safe neighborhood. 40 00:02:04,225 --> 00:02:09,528 No major crimes like you might find in The Tenderloin or downtown San Francisco. 41 00:02:09,530 --> 00:02:11,563 [narrator] On a late spring morning, 42 00:02:11,565 --> 00:02:14,199 with the city enveloped in a layer of fog, 43 00:02:14,201 --> 00:02:16,735 an alarming call comes into 911 44 00:02:16,737 --> 00:02:19,505 from an upscale condominium complex. 45 00:02:19,507 --> 00:02:23,408 [Hofsass] The manager of one of the buildings in Diamond Heights Village 46 00:02:23,410 --> 00:02:28,714 noticed a foul odor coming from condominium 307. 47 00:02:28,716 --> 00:02:31,917 The manager found the door unlocked, opened the door, 48 00:02:31,919 --> 00:02:35,654 and saw what appeared to be a deceased individual. 49 00:02:35,656 --> 00:02:38,323 It would be a fair assumption to say 50 00:02:38,325 --> 00:02:40,759 that he realized something was terribly wrong. 51 00:02:40,761 --> 00:02:42,594 He immediately called the police. 52 00:02:42,596 --> 00:02:44,229 [siren blaring] 53 00:02:44,231 --> 00:02:47,666 Police and paramedics arrived at the scene at 12:20pm 54 00:02:47,668 --> 00:02:51,537 and upon entering they found a female on the floor. 55 00:02:51,539 --> 00:02:58,410 It was immediately obvious to the first responders that this was a homicide. 56 00:02:58,412 --> 00:03:01,713 [narrator] The victim is the owner of the condo, 57 00:03:01,715 --> 00:03:05,751 36-year-old computer programmer, Lisa Valdez. 58 00:03:05,753 --> 00:03:08,387 Lisa worked in the IT profession 59 00:03:08,389 --> 00:03:10,822 and her career was blossoming. 60 00:03:10,824 --> 00:03:13,058 And this is my cubicle. 61 00:03:13,060 --> 00:03:16,128 My computer that I can type on the little computer. 62 00:03:16,130 --> 00:03:19,531 Lisa Valdez was born and raised in San Francisco. 63 00:03:20,767 --> 00:03:22,100 She loved life. 64 00:03:23,436 --> 00:03:25,070 Loved her family. 65 00:03:25,072 --> 00:03:27,372 She really was effervescent. 66 00:03:27,374 --> 00:03:28,974 She was quite special. 67 00:03:33,780 --> 00:03:37,749 [narrator] Inspectors Pam Hofsass and Ronan Shouldice 68 00:03:37,751 --> 00:03:41,386 from the San Francisco Police Department's homicide detail 69 00:03:41,388 --> 00:03:43,288 are called in to investigate. 70 00:03:44,757 --> 00:03:47,726 [Shouldice] When you are in such close proximity 71 00:03:47,728 --> 00:03:52,497 knowing that this person has been violently murdered, 72 00:03:52,499 --> 00:03:56,668 you can really not stop the video reel in your mind 73 00:03:56,670 --> 00:04:00,005 imagining the sequence of events. 74 00:04:00,007 --> 00:04:04,509 Crime scenes, they will reveal some of the story themselves. 75 00:04:04,511 --> 00:04:09,348 Lisa's body was left in the position that you could only 76 00:04:09,350 --> 00:04:12,718 describe as being extremely undignified. 77 00:04:13,686 --> 00:04:16,888 Her shirt was pulled up around her neck. 78 00:04:16,890 --> 00:04:19,625 Her underwear appeared to have been torn off 79 00:04:19,627 --> 00:04:21,760 and were on the floor beside her. 80 00:04:21,762 --> 00:04:25,764 She had a number of stab wounds. 81 00:04:25,766 --> 00:04:28,934 It was really difficult to discern any wounds 82 00:04:28,936 --> 00:04:30,869 or pattern of wounds, given that there was 83 00:04:30,871 --> 00:04:34,473 a degree of decomposition already underway. 84 00:04:34,475 --> 00:04:39,811 It appeared that she had been deceased for a period of a few days. 85 00:04:42,982 --> 00:04:45,150 [Hofsass] If you look at the crime scene, 86 00:04:45,152 --> 00:04:48,320 it seems that there is a very angry outburst. 87 00:04:48,322 --> 00:04:51,390 The way the mattress is located was very odd. 88 00:04:51,392 --> 00:04:54,126 It appears that the victim was stabbed on the bed 89 00:04:54,128 --> 00:04:57,329 and then pulled off the mattress onto the floor. 90 00:04:59,098 --> 00:05:02,267 In this case, the blood at the scene tells us a lot. 91 00:05:02,269 --> 00:05:04,736 When you see a lot of high-velocity splatter, 92 00:05:04,738 --> 00:05:08,206 this suggests that someone has been struck or stabbed 93 00:05:08,208 --> 00:05:10,008 with tremendous speed and force 94 00:05:10,010 --> 00:05:11,777 and is casting blood a great distance. 95 00:05:11,779 --> 00:05:15,414 It suggests that this is very much a frenzied attack, 96 00:05:15,416 --> 00:05:17,382 some kind of crime of passion. 97 00:05:21,621 --> 00:05:24,089 [narrator] To solve Lisa Valdez's murder, 98 00:05:24,091 --> 00:05:28,360 detectives will need to reconstruct the final 24 hours of her life. 99 00:05:28,362 --> 00:05:30,195 [Lisa screaming, straining] 100 00:05:30,197 --> 00:05:33,498 There was a bed which was in disarray, 101 00:05:33,500 --> 00:05:37,202 with a large quantity of blood. 102 00:05:37,204 --> 00:05:42,107 Blood all over. Basically, the mattress is soaked, the bedding is soaked. 103 00:05:42,109 --> 00:05:45,577 So maybe it was a sexual encounter gone bad. 104 00:05:46,979 --> 00:05:50,215 [Shouldice] The injuries were clearly the result of stabbing 105 00:05:50,217 --> 00:05:53,852 using some kind of weapon, given the degree of bloodshed. 106 00:05:53,854 --> 00:05:57,589 The working assumption was that it was an edged weapon. 107 00:05:57,591 --> 00:05:59,891 A knife of some sort. 108 00:05:59,893 --> 00:06:03,028 [narrator] Detectives collect all the bedding for testing, 109 00:06:03,030 --> 00:06:06,331 hoping some of the blood belongs to Lisa's killer. 110 00:06:06,333 --> 00:06:08,633 [Shouldice] Particularly in an edged weapon attack 111 00:06:08,635 --> 00:06:10,435 where there is often a high likelihood 112 00:06:10,437 --> 00:06:14,539 that the assailant will likewise injure himself or herself. 113 00:06:15,675 --> 00:06:17,509 [Hofsass] If you stab someone repeatedly, 114 00:06:17,511 --> 00:06:19,811 your fatty palm of your hand 115 00:06:19,813 --> 00:06:22,180 is going to get wet with the blood of that victim 116 00:06:22,182 --> 00:06:24,449 and then you will start hitting the hilt 117 00:06:24,451 --> 00:06:27,652 and the blade with your palm as you are stabbing someone. 118 00:06:29,522 --> 00:06:34,626 [narrator] Inspectors continue processing the crime scene looking for answers. 119 00:06:34,628 --> 00:06:36,895 [Shouldice] Beside Lisa's body on the carpet, 120 00:06:36,897 --> 00:06:39,664 there was also a broken glass. 121 00:06:39,666 --> 00:06:44,603 This broken glass, perhaps it may have been held by her assailant. 122 00:06:44,605 --> 00:06:48,740 There was a phone beside the bed with the receiver knocked off the base. 123 00:06:48,742 --> 00:06:50,675 There was blood on it. 124 00:06:50,677 --> 00:06:56,481 Everything was collected for both the DNA and latent fingerprints. 125 00:06:56,483 --> 00:07:01,153 [narrator] Investigators collect Lisa's computer, agenda, and answering machine 126 00:07:01,155 --> 00:07:05,490 hoping they'll offer up clues on who might have wanted to kill her. 127 00:07:05,492 --> 00:07:11,663 We collect these items attempting to establish recent contacts and activity. 128 00:07:11,665 --> 00:07:14,199 [Hofsass] If you looked at her calendar, 129 00:07:14,201 --> 00:07:17,002 almost every hour of every single day 130 00:07:17,004 --> 00:07:19,704 was filled with some event or celebration, 131 00:07:19,706 --> 00:07:22,107 either a date or a gym workout. 132 00:07:22,109 --> 00:07:25,410 Hawaiian dance class. I mean, she did it all. 133 00:07:25,412 --> 00:07:28,980 So she was very, very active. 134 00:07:28,982 --> 00:07:33,185 [Shouldice] Then the search continued throughout the rest of the condominium. 135 00:07:33,187 --> 00:07:36,588 The bathroom became an area of focus 136 00:07:36,590 --> 00:07:40,859 because it seemed clear to me that the assailant had spent some time in there. 137 00:07:40,861 --> 00:07:42,694 Most significantly to me, 138 00:07:42,696 --> 00:07:45,197 the toilet seat was in the raised position. 139 00:07:45,199 --> 00:07:46,865 [Hofsass] Lisa lives alone. 140 00:07:46,867 --> 00:07:48,867 Most women don't leave the toilet seat up. 141 00:07:48,869 --> 00:07:50,902 We don't go to the bathroom that way. 142 00:07:50,904 --> 00:07:53,805 [Shouldice] We recovered a partial latent fingerprint 143 00:07:53,807 --> 00:07:57,476 consistent with where an individual's fingers 144 00:07:57,478 --> 00:08:04,049 may go underneath to raise it into the up position. 145 00:08:04,051 --> 00:08:10,789 Other surfaces also yielded prints or partial prints all of which were collected. 146 00:08:10,791 --> 00:08:12,791 [narrator] New questions emerge as investigators 147 00:08:12,793 --> 00:08:16,461 work their way through Lisa's condo. 148 00:08:16,463 --> 00:08:19,297 At the scene, you have to look at everything. 149 00:08:19,299 --> 00:08:22,033 Was this a burglary gone wrong? 150 00:08:22,035 --> 00:08:24,536 There was nothing to indicate that somebody had, 151 00:08:24,538 --> 00:08:27,606 either before or after the homicide, 152 00:08:27,608 --> 00:08:31,743 searched through Lisa's unit looking for valuables. 153 00:08:31,745 --> 00:08:34,746 It was a very secure building. 154 00:08:34,748 --> 00:08:40,185 You had to be admitted or to have codes to access the building. 155 00:08:40,187 --> 00:08:42,420 There was a door viewer in the door 156 00:08:42,422 --> 00:08:44,789 which would allow her to see who was outside. 157 00:08:44,791 --> 00:08:47,592 [Hofsass] There's no sign of forced entry. 158 00:08:47,594 --> 00:08:50,295 It was clear that whoever committed the crime 159 00:08:50,297 --> 00:08:55,066 was known to her and was allowed in by Lisa Valdez. 160 00:08:55,068 --> 00:08:59,771 [narrator] Having determined that Lisa has likely been deceased for several days, 161 00:08:59,773 --> 00:09:01,673 inspectors turned to her neighbors 162 00:09:01,675 --> 00:09:05,377 hoping to narrow down her window with death. 163 00:09:05,379 --> 00:09:08,380 Downstairs neighbors report they heard a commotion 164 00:09:08,382 --> 00:09:12,817 at around 1:26 in the morning of Sunday, May 17. 165 00:09:12,819 --> 00:09:17,722 It could be as she is being pulled off the mattress and, you know, lands on the floor. 166 00:09:17,724 --> 00:09:21,860 It could be when she's being stabbed to death. 167 00:09:21,862 --> 00:09:23,995 [narrator] Based on this new information, 168 00:09:23,997 --> 00:09:27,165 inspectors believe that Lisa was likely murdered 169 00:09:27,167 --> 00:09:29,367 around 1:26 a.m. 170 00:09:33,339 --> 00:09:36,041 Investigators turn to the medical examiner, 171 00:09:36,043 --> 00:09:39,511 hoping their findings will help them build a profile of the killer. 172 00:09:39,513 --> 00:09:41,880 [Hofsass] The medical examiner 173 00:09:41,882 --> 00:09:44,182 noted a total of 21 stab wounds 174 00:09:44,184 --> 00:09:46,751 to the face, the neck, and the chest. 175 00:09:47,820 --> 00:09:51,489 They also noted that the aorta was severed, 176 00:09:51,491 --> 00:09:55,293 which explains the amount of blood on the mattress and the bedding. 177 00:09:55,295 --> 00:09:58,129 And they also noted defensive wounds on her hands, 178 00:09:58,131 --> 00:10:01,299 so she probably put her hands up for self-defense. 179 00:10:01,301 --> 00:10:02,867 [Lisa screaming] 180 00:10:02,869 --> 00:10:05,804 [Shouldice] It had all the hallmarks of a frenzied assault 181 00:10:05,806 --> 00:10:10,108 with multiple strikes and a lot of bloodshed. 182 00:10:10,110 --> 00:10:13,478 [Arntfield] Twenty-one separate stab wounds is overkill. 183 00:10:13,480 --> 00:10:16,381 The fact that most of these horrific stab wounds 184 00:10:16,383 --> 00:10:18,883 are concentrated around Lisa's face and chest 185 00:10:18,885 --> 00:10:22,187 tells me that this was not only intensely personal, 186 00:10:22,189 --> 00:10:27,492 but that this was someone who wanted to absolutely erase her. Not only kill her. 187 00:10:28,661 --> 00:10:31,830 And there is some type of possessive, obsessive, 188 00:10:31,832 --> 00:10:35,467 and often sexual underlying motive. 189 00:10:35,469 --> 00:10:38,036 [Shouldice] Because of the degradation of DNA, 190 00:10:38,038 --> 00:10:42,307 the medical examiner couldn't prove that there was also rape involved. 191 00:10:42,309 --> 00:10:46,478 But again, she was left in a position that would be consistent 192 00:10:46,480 --> 00:10:48,780 with some kind of a sexual assault, 193 00:10:48,782 --> 00:10:50,649 most likely postmortem. 194 00:10:52,151 --> 00:10:55,720 [narrator] The medical examiner makes another important discovery. 195 00:10:55,722 --> 00:11:00,458 Lisa's hair appears to have been crudely cut, most likely postmortem 196 00:11:00,460 --> 00:11:02,961 as there are no lacerations to her scalp. 197 00:11:04,764 --> 00:11:07,766 [Stockdale] The fact that Lisa is found with their hair cut off, 198 00:11:07,768 --> 00:11:11,102 this is something that is fantasy ritualistic-driven, 199 00:11:11,104 --> 00:11:13,605 because cutting someone's hair is not required 200 00:11:13,607 --> 00:11:15,573 for commission of this crime. 201 00:11:15,575 --> 00:11:18,576 It could very well be that the killer is motivated 202 00:11:18,578 --> 00:11:21,613 to have a piece of her always with him. 203 00:11:25,818 --> 00:11:28,420 [narrator] Inspectors receive the crime lab reports 204 00:11:28,422 --> 00:11:32,390 and the initial findings don't yield any DNA results. 205 00:11:32,392 --> 00:11:35,393 Fingerprint analysis also comes up empty. 206 00:11:35,395 --> 00:11:38,730 But then they receive a potential new lead. 207 00:11:40,066 --> 00:11:43,368 In one particular area on one of the pillowcases, 208 00:11:43,370 --> 00:11:48,006 there were a couple of drops that caught the attention of the crime lab. 209 00:11:48,008 --> 00:11:52,077 They felt very optimistic that it could be the assailant's blood. 210 00:11:52,079 --> 00:11:54,079 And it was. 211 00:11:54,081 --> 00:11:58,750 [Hofsass] We found a mixture of two different DNAs on the pillow. 212 00:11:58,752 --> 00:12:03,188 One was Lisa Valdez and one was a unknown male profile. 213 00:12:03,190 --> 00:12:06,758 This blood droplet was a major breakthrough for the case. 214 00:12:06,760 --> 00:12:10,295 That DNA profile needs to be matched to somebody, 215 00:12:10,297 --> 00:12:12,464 because he must be the killer. 216 00:12:14,133 --> 00:12:15,800 [narrator] In the brutal murder 217 00:12:15,802 --> 00:12:19,571 of 36-year-old computer programmer, Lisa Valdez, 218 00:12:19,573 --> 00:12:22,006 investigators have their first big break. 219 00:12:22,008 --> 00:12:27,278 They have found male DNA, possibly from her killer. 220 00:12:27,280 --> 00:12:30,482 I personally hand-delivered a small, little tube of DNA extract 221 00:12:30,484 --> 00:12:33,785 from this droplet on Lisa's pillow 222 00:12:33,787 --> 00:12:38,490 that revealed a unknown male profile to the state DNA crime lab. 223 00:12:38,492 --> 00:12:42,660 Now, In 1998, early DNA methods took a lot of time, 224 00:12:42,662 --> 00:12:45,330 but they uploaded it to the database which was very small 225 00:12:45,332 --> 00:12:48,133 and limited at the time and found no match. 226 00:12:48,135 --> 00:12:52,937 [narrator] With no concrete leads or potential suspects, 227 00:12:52,939 --> 00:12:56,207 inspectors turned to Lisa's mother, Helen Valdez, 228 00:12:56,209 --> 00:13:00,044 hoping she can fill out her daughter's time-line. 229 00:13:00,046 --> 00:13:03,481 [Hofsass] Helen and Lisa were very close. 230 00:13:03,483 --> 00:13:05,250 They spent a lot of time together. 231 00:13:05,252 --> 00:13:07,485 They would talk almost every day. 232 00:13:07,487 --> 00:13:11,556 It was very, very painful for Helen to lose her daughter 233 00:13:11,558 --> 00:13:13,958 and not know why someone would do that. 234 00:13:13,960 --> 00:13:18,363 It was just a real heartbreak for her. As for any parent. 235 00:13:18,365 --> 00:13:22,667 [narrator] Investigators ask Helen Valdez about her last contact with Lisa. 236 00:13:22,669 --> 00:13:25,003 And learned they saw each other 237 00:13:25,005 --> 00:13:28,373 just a few hours before Lisa was likely killed. 238 00:13:30,142 --> 00:13:33,812 Lisa's mother said that on Saturday, May 16, 239 00:13:33,814 --> 00:13:38,216 Lisa entertained her mother and some friends at a dinner party. 240 00:13:38,218 --> 00:13:40,185 Most of the other guests were leaving 241 00:13:40,187 --> 00:13:42,387 at about 11:00 p.m. 242 00:13:42,389 --> 00:13:45,890 Helen stays on with Lisa for another little while 243 00:13:45,892 --> 00:13:50,962 and left around midnight or 12:00 a.m. on Sunday, May 17th. 244 00:13:52,932 --> 00:13:55,567 [narrator] Helen Valdez also reveals a crucial detail 245 00:13:55,569 --> 00:13:57,435 about her daughter's appearance. 246 00:13:58,804 --> 00:14:00,238 As part of the autopsy, 247 00:14:00,240 --> 00:14:03,708 the medical examiner noted that her hair was shoulder length 248 00:14:03,710 --> 00:14:07,478 and when that information was shared with the family, 249 00:14:07,480 --> 00:14:11,916 the response was that Lisa's pride and joy was her hair. 250 00:14:11,918 --> 00:14:16,120 [Shouldice] They called it, I believe, her crowning glory. It was her signature. 251 00:14:16,122 --> 00:14:18,590 Helen said that she would never have cut her hair. 252 00:14:19,959 --> 00:14:23,528 [Hofsass] 2 feet of her hair, her prized possession, is taken. 253 00:14:23,530 --> 00:14:26,097 That is what's known as a token. 254 00:14:26,099 --> 00:14:28,933 This adds to the fact that the person who committed the crime 255 00:14:28,935 --> 00:14:31,469 knew Lisa because they would have known 256 00:14:31,471 --> 00:14:35,206 that her hair was, really, a big part of her life. 257 00:14:35,208 --> 00:14:38,776 [Shouldice] It would imply that there is a fixation 258 00:14:38,778 --> 00:14:43,114 or there is something beyond just the violence involved. 259 00:14:43,116 --> 00:14:46,117 [Stockdale] The killer cutting her hair could be a way 260 00:14:46,119 --> 00:14:48,052 of humiliating her. 261 00:14:48,054 --> 00:14:49,587 It could be a way of sending a message 262 00:14:49,589 --> 00:14:52,857 that I am attacking you, and I'm attacking your sexuality, 263 00:14:52,859 --> 00:14:54,592 and your femininity. 264 00:14:54,594 --> 00:14:58,363 Maybe I want to take this to also possess you. 265 00:14:58,365 --> 00:15:01,032 Maybe he wants a memento or trophy 266 00:15:01,034 --> 00:15:04,469 that he can use for his own purposes. 267 00:15:04,471 --> 00:15:06,271 [Arntfield] By removing her hair, 268 00:15:06,273 --> 00:15:09,941 it would have just intensified the killer's obsessive tendencies. 269 00:15:09,943 --> 00:15:12,043 The need to own her... 270 00:15:12,045 --> 00:15:13,244 even in death. 271 00:15:17,983 --> 00:15:19,817 [narrator] Inspectors ask Helen Valdez 272 00:15:19,819 --> 00:15:21,819 if there are any men in Lisa's life 273 00:15:21,821 --> 00:15:26,624 who might match the profile of a man who was obsessed with her. 274 00:15:26,626 --> 00:15:30,328 Helen said that Lisa had told her during the dinner party 275 00:15:30,330 --> 00:15:32,030 that she had a date with somebody new 276 00:15:32,032 --> 00:15:33,865 the following day, on Sunday, May 17. 277 00:15:33,867 --> 00:15:37,502 Helen did not know who this individual was. 278 00:15:37,504 --> 00:15:41,706 It became a potentially interesting lead 279 00:15:41,708 --> 00:15:45,643 because she perhaps had received a visit from him prematurely 280 00:15:45,645 --> 00:15:47,612 and let him into her apartment. 281 00:15:47,614 --> 00:15:52,583 Trying to find this individual rapidly became a focus of the investigation. 282 00:15:54,820 --> 00:15:57,088 [narrator] Then results come in from the analysis 283 00:15:57,090 --> 00:15:59,123 of Lisa's computer and her telephone 284 00:15:59,125 --> 00:16:04,095 with fresh leads for inspectors to dig into. 285 00:16:04,097 --> 00:16:07,165 Computer forensics investigators determined 286 00:16:07,167 --> 00:16:11,235 that at approximately 12:10 a.m. on Sunday, May 17, 287 00:16:11,237 --> 00:16:13,571 Lisa was updating her own website, 288 00:16:13,573 --> 00:16:18,009 which would have been shortly after her mother Helen had left around midnight. 289 00:16:18,011 --> 00:16:22,246 Her computer was then abruptly shut down without logging off 290 00:16:22,248 --> 00:16:24,749 or anything like that at 1:30 in the morning. 291 00:16:25,651 --> 00:16:27,418 So as we examine the timeline, 292 00:16:27,420 --> 00:16:31,222 given the loud noise at about 1:26 a.m., 293 00:16:31,224 --> 00:16:34,058 and then you look at the improper shutdown 294 00:16:34,060 --> 00:16:37,061 of Lisa's computer at 1:30 a.m., 295 00:16:37,063 --> 00:16:39,831 it would suggest that the dynamics had shifted 296 00:16:39,833 --> 00:16:41,532 within her apartment at that time. 297 00:16:41,534 --> 00:16:45,003 [Hofsass] The theory is that it could have been the perpetrator 298 00:16:45,005 --> 00:16:47,772 that either just shut it down or unplugged it. 299 00:16:49,141 --> 00:16:54,112 The investigation also reveals that at 2:50 a.m., 300 00:16:54,114 --> 00:16:57,482 a call comes in to Lisa's landline which is unanswered. 301 00:16:57,484 --> 00:16:59,183 [phone beeping] 302 00:16:59,185 --> 00:17:03,654 This call is received by the answering machine. 303 00:17:03,656 --> 00:17:06,657 [narrator] The caller identifies himself as Kevin Duvall. 304 00:17:06,659 --> 00:17:10,461 [Hofsass] Kevin states, "Hi, Lisa. Hi, sweetie. 305 00:17:10,463 --> 00:17:13,364 I'm sorry I'm not gonna be able to make the date today. 306 00:17:13,366 --> 00:17:14,832 Talk to you soon. Thanks. Bye." 307 00:17:14,834 --> 00:17:19,137 We needed to find Kevin. 308 00:17:19,139 --> 00:17:21,739 [narrator] Then the investigation gets another boost. 309 00:17:21,741 --> 00:17:26,144 When Lisa's housekeeper comes forward with new information. 310 00:17:26,146 --> 00:17:29,280 The housekeeper comes every Monday to clean Lisa's condo. 311 00:17:29,282 --> 00:17:34,585 But on Monday, May 18, at around 10:00 in the morning, 312 00:17:34,587 --> 00:17:37,155 she gets to Lisa's condo, opens the door, 313 00:17:37,157 --> 00:17:42,593 and sees Lisa on the floor and a gym bag on one side 314 00:17:42,595 --> 00:17:46,864 and she hears a male voice and says, "Oh, I don't want to interrupt. 315 00:17:46,866 --> 00:17:48,566 I'll come back next week." 316 00:17:48,568 --> 00:17:51,302 And she quickly closes the door. 317 00:17:51,304 --> 00:17:55,306 So that led investigators to think that the perpetrator 318 00:17:55,308 --> 00:17:58,242 stayed in the house for over 30 hours. 319 00:17:58,244 --> 00:18:05,283 He was there after midnight on Sunday, May 17, through Monday at 10am. 320 00:18:05,285 --> 00:18:07,585 How scary is that? [chuckles] 321 00:18:07,587 --> 00:18:12,523 That he was able to stay that long is kind of disturbing and unusual. 322 00:18:12,525 --> 00:18:17,128 We are not sure what he could of possibly been doing that entire time. 323 00:18:23,669 --> 00:18:25,703 [narrator] In a sadistic killing of Lisa Valdez, 324 00:18:25,705 --> 00:18:30,208 homicide investigators have learned that the young woman's murderer 325 00:18:30,210 --> 00:18:34,812 likely stayed with her dead body for more than 30 hours. 326 00:18:34,814 --> 00:18:38,316 The theory is that she is murdered on May 17 327 00:18:38,318 --> 00:18:41,419 at almost 1:30, early hours of Sunday morning. 328 00:18:41,421 --> 00:18:46,424 And, so, thanks to the housekeeper's account of the timeline, 329 00:18:46,426 --> 00:18:50,294 he still there Monday morning, May 18, at 10:00. 330 00:18:50,296 --> 00:18:53,331 At this point we are still struggling to connect the dots 331 00:18:53,333 --> 00:18:55,600 so this just confounds the investigation 332 00:18:55,602 --> 00:18:59,470 and adds to the complexity of what's going on. 333 00:19:01,140 --> 00:19:05,076 It merits noting that Lisa's killer spent over 24 hours 334 00:19:05,078 --> 00:19:06,777 with her body postmortem. 335 00:19:06,779 --> 00:19:08,446 It suggests a number of things. 336 00:19:08,448 --> 00:19:11,916 We know for instance that convicted sexual sadists and sexual murderers 337 00:19:11,918 --> 00:19:14,719 like to spend prolonged amounts of time with their victims. 338 00:19:14,721 --> 00:19:18,556 They see their victims as objects to be possessed and experimented with. 339 00:19:18,558 --> 00:19:22,627 It ups the ante in terms of how dangerous this person is. 340 00:19:24,730 --> 00:19:27,198 [narrator] Investigators need to determine 341 00:19:27,200 --> 00:19:29,634 if there is a connection between the phone message 342 00:19:29,636 --> 00:19:35,540 left for Lisa by Kevin Duvall at 2:52 a.m. and her murder. 343 00:19:35,542 --> 00:19:40,311 The phone call on her answering machine is from a payphone. 344 00:19:40,313 --> 00:19:42,914 [Shouldice] The content of the message was a young man 345 00:19:42,916 --> 00:19:46,250 who had to cancel a date for later on that afternoon. 346 00:19:46,252 --> 00:19:49,120 Certainly the possibility would exist 347 00:19:49,122 --> 00:19:53,457 that if this individual called at that time, 348 00:19:53,459 --> 00:19:57,628 he could, conceivably, be attempting to create some kind of alibi position 349 00:19:57,630 --> 00:19:59,931 for himself if he was involved. 350 00:20:02,634 --> 00:20:07,772 The fact that Lisa had a date planned with some mystery man after she was murdered 351 00:20:07,774 --> 00:20:11,742 and that this guy, Kevin, had canceled that date around 2:00 in the morning, 352 00:20:11,744 --> 00:20:14,345 this in itself is inherently suspicious. 353 00:20:18,617 --> 00:20:20,985 [narrator] Inspectors look into Kevin Duvall, 354 00:20:20,987 --> 00:20:24,255 and discover his phone number in Lisa's address book. 355 00:20:24,257 --> 00:20:27,792 [Hofsass] We were looking for anyone who had any issues with Lisa, 356 00:20:27,794 --> 00:20:30,228 that maybe was passionately in love with her 357 00:20:30,230 --> 00:20:31,662 that she didn't accept. 358 00:20:33,031 --> 00:20:35,366 Kevin comes into the station 359 00:20:35,368 --> 00:20:40,271 to provide a statement regarding the last contact he had with Lisa. 360 00:20:40,273 --> 00:20:43,541 Investigators found that Kevin Duvall, during their interview, 361 00:20:43,543 --> 00:20:45,610 was behaving very nervously 362 00:20:45,612 --> 00:20:47,411 and that he had advised the police 363 00:20:47,413 --> 00:20:49,213 that he met Lisa through a recruiting center 364 00:20:49,215 --> 00:20:51,616 where the two were looking for work 365 00:20:51,618 --> 00:20:54,819 and that their friendship then developed and blossomed. 366 00:20:54,821 --> 00:20:56,454 [Hofsass] In Kevin's statement, 367 00:20:56,456 --> 00:21:00,458 he mentioned that the reason he canceled the date with Lisa on that Sunday 368 00:21:00,460 --> 00:21:04,362 was wasn't feeling well and he just wanted to give her a heads-up and let her know 369 00:21:04,364 --> 00:21:08,366 in the middle of the night that that was the case. 370 00:21:08,368 --> 00:21:11,269 [narrator] As detectives continued to question Kevin 371 00:21:11,271 --> 00:21:13,838 they observe something suspicious. 372 00:21:13,840 --> 00:21:15,806 [Arntfield] Police note that on Kevin's hand, 373 00:21:15,808 --> 00:21:19,510 he has this laceration that is consistent 374 00:21:19,512 --> 00:21:22,113 with the types of wounds obtained unintentionally 375 00:21:22,115 --> 00:21:25,283 by offenders who stab a victim. 376 00:21:25,285 --> 00:21:29,120 It's very difficult to repeatedly stab someone with most knives 377 00:21:29,122 --> 00:21:32,456 and not sustain some kind of incidental self-injury. 378 00:21:32,458 --> 00:21:36,694 This immediately is going to raise some red flags. 379 00:21:36,696 --> 00:21:39,196 The cut could indicate that he was the perpetrator 380 00:21:39,198 --> 00:21:43,834 because we know that blood was dripped onto the pillow after the stabbing. 381 00:21:46,138 --> 00:21:48,773 [narrator] When inspectors ask about his whereabouts 382 00:21:48,775 --> 00:21:51,909 in the early hours of Sunday, May 17, 383 00:21:51,911 --> 00:21:54,378 Kevin's alibi is that he was home alone. 384 00:21:56,048 --> 00:21:59,116 When you are alone, you have no one to witness that you are alone. 385 00:21:59,118 --> 00:22:03,054 This was before GPS and surveillance cameras 386 00:22:03,056 --> 00:22:07,291 and so, there was nobody who could substantiate his being home alone. 387 00:22:08,960 --> 00:22:13,264 Kevin becomes the prime suspect because there is no real alibi 388 00:22:13,266 --> 00:22:15,032 and he did have a cut on his hand. 389 00:22:15,034 --> 00:22:17,802 We're thinking, "if he has a cut on his hand, he must be the killer." 390 00:22:19,905 --> 00:22:24,075 We requested that he provide DNA samples and fingerprints. 391 00:22:24,077 --> 00:22:27,878 [Hofsass] Along with his DNA swabs and fingerprints, 392 00:22:27,880 --> 00:22:31,449 Kevin agrees to take a polygraph exam. 393 00:22:31,451 --> 00:22:33,751 His polygraph was inconclusive, 394 00:22:33,753 --> 00:22:36,887 which means that they couldn't say without a doubt 395 00:22:36,889 --> 00:22:38,322 that he was telling the whole truth. 396 00:22:39,891 --> 00:22:42,593 [narrator] But when the forensic results come in, 397 00:22:42,595 --> 00:22:45,262 they are conclusive. 398 00:22:45,264 --> 00:22:47,665 The results eliminate him and exclude him 399 00:22:47,667 --> 00:22:49,500 as a source of the blood on the pillow, 400 00:22:49,502 --> 00:22:53,137 fingerprint-wise and DNA-wise. 401 00:22:53,139 --> 00:22:56,841 So Kevin could not have been the killer. 402 00:22:56,843 --> 00:22:59,577 [narrator] With their prime suspect eliminated, 403 00:22:59,579 --> 00:23:02,446 investigators are still left with the DNA 404 00:23:02,448 --> 00:23:05,349 of an unknown male killer, and not much else. 405 00:23:07,486 --> 00:23:09,019 Lisa knows her killer, 406 00:23:09,021 --> 00:23:12,590 and this is probably someone who has obsessed over her. 407 00:23:12,592 --> 00:23:14,592 Maybe he's been rejected 408 00:23:14,594 --> 00:23:17,328 and he moves from rejected to resentful. 409 00:23:17,330 --> 00:23:22,633 The more he ruminates on this, the more potentially his violence increases, 410 00:23:22,635 --> 00:23:24,969 so this obsession turns deadly. 411 00:23:25,804 --> 00:23:27,338 This guy is really a cornucopia 412 00:23:27,340 --> 00:23:30,908 of high-risk sexual preoccupations. 413 00:23:30,910 --> 00:23:35,413 All of which points to a disordered but obsessive mind. 414 00:23:38,049 --> 00:23:41,152 [Hofsass] Officers interview, like, 50 people at least. 415 00:23:41,154 --> 00:23:43,120 Every person that they've interviewed, 416 00:23:43,122 --> 00:23:46,657 every person that they've sampled is hitting a deadend, 417 00:23:46,659 --> 00:23:49,260 and that's very frustrating. 418 00:23:49,262 --> 00:23:52,062 [narrator] Inspectors circle back to Lisa's mother, Helen, 419 00:23:52,064 --> 00:23:53,964 to see if there's anyone else 420 00:23:53,966 --> 00:23:57,735 who comes to mind who fits the profile of the killer. 421 00:23:57,737 --> 00:24:00,738 We came across one potential suspect. 422 00:24:00,740 --> 00:24:04,308 Gary, who they were very interested in. 423 00:24:04,310 --> 00:24:05,876 [Hofsass] According to Lisa's friends, 424 00:24:05,878 --> 00:24:09,046 they dated in the past, maybe one or two dates. 425 00:24:09,048 --> 00:24:12,016 He was very much into her and she was not into him, 426 00:24:12,018 --> 00:24:14,318 and so that piqued the interest 427 00:24:14,320 --> 00:24:15,786 for the investigation, 428 00:24:15,788 --> 00:24:18,889 'cause now we are talking about unrequited love 429 00:24:18,891 --> 00:24:21,859 and possible jealousy. 430 00:24:21,861 --> 00:24:23,561 [narrator] Helen Valdez hadn't thought much 431 00:24:23,563 --> 00:24:26,063 of Gary Walker before the murder. 432 00:24:26,065 --> 00:24:28,699 But recent events have raised her suspicion. 433 00:24:30,168 --> 00:24:33,337 There was a memorial service for Lisa. 434 00:24:33,339 --> 00:24:36,841 And Gary read a letter out loud to everyone, 435 00:24:36,843 --> 00:24:39,844 that was very unusual and scary, 436 00:24:39,846 --> 00:24:41,879 I guess, is the right word. 437 00:24:41,881 --> 00:24:45,749 The letter that he read at the memorial service stated, 438 00:24:45,751 --> 00:24:47,585 "If I killed Lisa..." 439 00:24:47,587 --> 00:24:50,421 It also stated he would have never done that 440 00:24:50,423 --> 00:24:52,756 because he loved her so much. 441 00:24:52,758 --> 00:24:56,160 It was really bizarre and very, very strange. 442 00:24:56,162 --> 00:24:58,295 People were surprised and taken aback. 443 00:24:59,831 --> 00:25:01,966 [Arntfield] Gary's disturbing poem reading... 444 00:25:01,968 --> 00:25:03,634 I mean, this is someone who is 445 00:25:03,636 --> 00:25:05,636 a little too preoccupied with Lisa. 446 00:25:05,638 --> 00:25:09,740 This to me speaks of a certain degree of obsession, 447 00:25:09,742 --> 00:25:11,609 even of obsessive fantasy. 448 00:25:12,911 --> 00:25:15,112 [Hofsass] He literally becomes the prime suspect 449 00:25:15,114 --> 00:25:16,447 with that information. 450 00:25:17,349 --> 00:25:18,649 [Lisa screams] 451 00:25:20,919 --> 00:25:22,152 [narrator] In the gruesome murder 452 00:25:22,154 --> 00:25:24,388 of 36-year-old Lisa Valdez, 453 00:25:24,390 --> 00:25:27,324 inspectors are zeroing in on a new suspect, 454 00:25:27,326 --> 00:25:28,893 Gary Walker. 455 00:25:28,895 --> 00:25:30,561 A man she once dated 456 00:25:30,563 --> 00:25:33,831 who developed a twisted obsession with her. 457 00:25:33,833 --> 00:25:37,067 This prime suspect is infatuated with Lisa. 458 00:25:38,069 --> 00:25:40,137 When you tie that in with the letter 459 00:25:40,139 --> 00:25:42,406 that he read at the memorial service 460 00:25:42,408 --> 00:25:44,808 that stated, "If I killed Lisa," 461 00:25:44,810 --> 00:25:48,078 we have bizarre behavior from this individual. 462 00:25:48,080 --> 00:25:50,247 She definitely was not interested, 463 00:25:50,249 --> 00:25:51,749 and so he murdered her. 464 00:25:51,751 --> 00:25:53,884 That's the theory, right? 465 00:25:53,886 --> 00:25:57,788 And it's quite possible that's why she's dead. 466 00:25:57,790 --> 00:26:00,824 [narrator] With suspicions swirling around Gary Walker, 467 00:26:00,826 --> 00:26:04,094 detectives haul him into the station for questioning. 468 00:26:04,096 --> 00:26:06,564 Gary says he's very close to Lisa, 469 00:26:06,566 --> 00:26:08,566 he's a good friend of hers, 470 00:26:08,568 --> 00:26:12,069 and that he considered Lisa his soulmate. 471 00:26:12,071 --> 00:26:16,473 He would never do any kind of harm to her at all. 472 00:26:16,475 --> 00:26:19,076 [narrator] Investigators drill down on Gary's timeline 473 00:26:19,078 --> 00:26:21,612 in the hours leading up to Lisa's murder. 474 00:26:23,348 --> 00:26:24,949 So, according to Gary's statement, 475 00:26:24,951 --> 00:26:29,386 he was with friends on the evening of May 16th, Saturday. 476 00:26:29,388 --> 00:26:32,456 And then after midnight on Sunday morning, 477 00:26:32,458 --> 00:26:36,493 he was at home asleep alone in his apartment. 478 00:26:36,495 --> 00:26:38,095 But there was nobody who could 479 00:26:38,097 --> 00:26:41,432 substantiate his being home alone and asleep 480 00:26:41,434 --> 00:26:44,735 and not having anything to do with this murder at the time. 481 00:26:46,237 --> 00:26:49,173 A DNA swab is collected from Gary 482 00:26:49,175 --> 00:26:52,610 and fingerprints are collected so that we can compare it 483 00:26:52,612 --> 00:26:55,946 to the latent fingerprints from the toilet seat 484 00:26:55,948 --> 00:26:58,515 and the DNA evidence from the pillow 485 00:26:58,517 --> 00:27:00,818 that we have from the crime scene. 486 00:27:00,820 --> 00:27:03,821 [narrator] Investigators also obtain search warrants 487 00:27:03,823 --> 00:27:05,556 for Gary's home and vehicle. 488 00:27:06,524 --> 00:27:08,158 He is the prime suspect. 489 00:27:08,160 --> 00:27:10,027 And when they search Gary's house, 490 00:27:10,029 --> 00:27:13,697 they find evidence of his infatuation with Lisa. 491 00:27:13,699 --> 00:27:18,869 There's pictures and letters and mementos of Lisa all over. 492 00:27:18,871 --> 00:27:20,838 When police search his residence, 493 00:27:20,840 --> 00:27:23,841 they find a shrine to Lisa. 494 00:27:23,843 --> 00:27:25,175 Photographs. 495 00:27:25,177 --> 00:27:27,711 Photographs intermingled with pornography, 496 00:27:27,713 --> 00:27:30,648 and essentially all things Lisa 497 00:27:30,650 --> 00:27:33,417 that suggest Gary was beyond obsessed. 498 00:27:35,887 --> 00:27:37,287 The homicide inspectors 499 00:27:37,289 --> 00:27:40,391 felt that he may be indeed her murderer. 500 00:27:44,195 --> 00:27:47,398 [narrator] Police sees plenty of incriminating evidence, 501 00:27:47,400 --> 00:27:49,433 but while all of it plays to the profile 502 00:27:49,435 --> 00:27:51,335 of an obsessed killer, 503 00:27:51,337 --> 00:27:54,705 nothing from Gary's home comes back with Lisa's DNA. 504 00:27:56,274 --> 00:27:58,008 Nothing had blood drips on it. 505 00:27:58,010 --> 00:28:01,545 There was no evidence that he took something from the scene 506 00:28:01,547 --> 00:28:03,080 and brought it back to his house. 507 00:28:03,082 --> 00:28:04,281 There was no evidence 508 00:28:04,283 --> 00:28:06,684 that we could tie it to the crime scene. 509 00:28:06,686 --> 00:28:10,621 So there's no proof that he committed the crime. 510 00:28:12,323 --> 00:28:15,559 [narrator] But with no one able to verify Gary's alibi, 511 00:28:15,561 --> 00:28:19,096 inspectors ask him to submit to a polygraph test. 512 00:28:20,398 --> 00:28:22,900 They definitely thought he was going to fail the polygraph 513 00:28:22,902 --> 00:28:24,768 and confess to the murder. 514 00:28:24,770 --> 00:28:28,772 That was their hope, and it didn't pan out that way. 515 00:28:28,774 --> 00:28:31,942 They subject Gary to a couple of polygraphs. 516 00:28:31,944 --> 00:28:34,178 They come back inconclusive 517 00:28:34,180 --> 00:28:35,813 each and every time. 518 00:28:36,781 --> 00:28:38,348 [narrator] The only remaining avenue 519 00:28:38,350 --> 00:28:41,585 of investigation into Gary is the forensics. 520 00:28:41,587 --> 00:28:43,654 [Hofsass] The fingerprints eliminate Gary 521 00:28:43,656 --> 00:28:44,955 from the crime scene, 522 00:28:44,957 --> 00:28:47,925 and so then it's a matter of getting the DNA results in. 523 00:28:47,927 --> 00:28:52,029 And the DNA is also excluding Gary from the crime scene. 524 00:28:52,864 --> 00:28:55,566 It could have been the breakthrough, 525 00:28:55,568 --> 00:28:56,467 and it wasn't. 526 00:28:57,168 --> 00:28:58,502 We're still at a deadend. 527 00:28:58,504 --> 00:29:00,671 We don't have any other information 528 00:29:00,673 --> 00:29:02,506 about who committed this crime. 529 00:29:04,375 --> 00:29:07,344 The investigation essentially hits the wall. 530 00:29:09,114 --> 00:29:11,081 [narrator] Over the course of several months, 531 00:29:11,083 --> 00:29:15,486 investigators obtain and test the DNA of dozens of other men 532 00:29:15,488 --> 00:29:19,089 in Lisa's address book and list of caller IDs. 533 00:29:19,091 --> 00:29:21,792 We were still receiving from the homicide inspectors 534 00:29:21,794 --> 00:29:24,795 a series of potential candidates 535 00:29:24,797 --> 00:29:26,997 for comparison against the fingerprints 536 00:29:26,999 --> 00:29:29,233 collected from the crime scene. 537 00:29:29,235 --> 00:29:32,636 At least a dozen sets of prints were admitted to CSI 538 00:29:32,638 --> 00:29:34,605 for comparison against that, 539 00:29:34,607 --> 00:29:37,007 and every one of them was negative. 540 00:29:37,842 --> 00:29:39,443 [Hofsass] We've already eliminated 541 00:29:39,445 --> 00:29:42,980 so many of the contacts through interviewing and testing, 542 00:29:42,982 --> 00:29:45,716 also contacting people she has dated, 543 00:29:45,718 --> 00:29:49,219 or her ex-boyfriends, and everybody is eliminated. 544 00:29:49,221 --> 00:29:53,056 There's no evidence of who might have committed the crime. 545 00:29:55,026 --> 00:29:56,627 [narrator] Months turn to years 546 00:29:56,629 --> 00:29:58,295 and the case grows cold 547 00:29:58,297 --> 00:30:01,598 and stays cold for more than a decade. 548 00:30:01,600 --> 00:30:05,102 The thing that stuck out for me was that this gal, 549 00:30:05,104 --> 00:30:07,638 she lived on her own, she was self-sufficient, 550 00:30:07,640 --> 00:30:09,072 she was independent. 551 00:30:09,074 --> 00:30:10,407 She loved life. 552 00:30:10,409 --> 00:30:13,911 I related to a lot of that, and so I saw myself in her. 553 00:30:13,913 --> 00:30:16,814 And I saw the way she was brutally murdered. 554 00:30:16,816 --> 00:30:20,984 I actually had the DNA profile in a chart on my desk, 555 00:30:20,986 --> 00:30:24,354 and every time a case came up and we had a reference sample 556 00:30:24,356 --> 00:30:26,390 come in for a violent crime, 557 00:30:26,392 --> 00:30:29,993 I would look at that profile to see if there was a match. 558 00:30:29,995 --> 00:30:32,863 And year after year, I would call the state lab 559 00:30:32,865 --> 00:30:36,466 and just ask them to conduct a quick search of that profile 560 00:30:36,468 --> 00:30:38,936 that's already in CODIS and still not a match. 561 00:30:39,804 --> 00:30:41,672 [Shouldice] I left that fingerprint 562 00:30:41,674 --> 00:30:43,173 from the crime scene on my desk 563 00:30:43,175 --> 00:30:45,209 where it remained for years. 564 00:30:45,211 --> 00:30:46,410 It was a constant reminder 565 00:30:46,412 --> 00:30:49,079 that there was still an unidentified fingerprint 566 00:30:49,081 --> 00:30:51,682 within that case file. 567 00:30:51,684 --> 00:30:52,983 [Arntfield] Lisa's murder is a case that, 568 00:30:52,985 --> 00:30:55,853 beginning to end, lends itself to obsession. 569 00:30:55,855 --> 00:30:59,323 We have the very malicious obsession of the killer 570 00:30:59,325 --> 00:31:01,592 and some other people in her life, 571 00:31:01,594 --> 00:31:04,328 but then we have the very benevolent 572 00:31:04,330 --> 00:31:06,964 and virtuous obsession of the police 573 00:31:06,966 --> 00:31:08,999 who will never let this case go. 574 00:31:10,168 --> 00:31:12,236 [narrator] Then, Pam Hofsass attends a conference 575 00:31:12,238 --> 00:31:14,071 for homicide detectives, 576 00:31:14,073 --> 00:31:17,374 where she learns how popular familial DNA sites 577 00:31:17,376 --> 00:31:19,643 can be used to solve crimes. 578 00:31:19,645 --> 00:31:22,813 Instead of looking for an exact perfect DNA match, 579 00:31:22,815 --> 00:31:25,349 we look for a partial match. 580 00:31:25,351 --> 00:31:27,484 In other words, if there is a relative, 581 00:31:27,486 --> 00:31:29,753 like a brother, a son, 582 00:31:29,755 --> 00:31:32,189 or father, biologically, 583 00:31:32,191 --> 00:31:34,224 they are going to have very similar 584 00:31:34,226 --> 00:31:37,361 genetic information as a DNA profile, 585 00:31:37,363 --> 00:31:39,930 and if they would be in the database, 586 00:31:39,932 --> 00:31:42,566 then we could backtrack and do research 587 00:31:42,568 --> 00:31:44,334 on the backend to see 588 00:31:44,336 --> 00:31:48,238 if any of those relatives were in the area or available, 589 00:31:48,240 --> 00:31:50,741 let's say, to commit that crime. 590 00:31:50,743 --> 00:31:53,977 When I got back, I told my lieutenant at the time, 591 00:31:53,979 --> 00:31:56,480 "We got to do a familial search on Lisa Valdez." 592 00:31:56,482 --> 00:31:59,049 [narrator] Investigators hope the killer's DNA 593 00:31:59,051 --> 00:32:00,784 they found on the pillow case 594 00:32:00,786 --> 00:32:03,320 can be matched to one of their family members. 595 00:32:03,322 --> 00:32:07,891 But on September 2nd, 2011, Inspector Hofsass gains 596 00:32:07,893 --> 00:32:11,662 new information that breaks the case wide open. 597 00:32:11,664 --> 00:32:13,297 [Hofsass] I got a call from the state lab, 598 00:32:13,299 --> 00:32:15,232 and they said, "We always do 599 00:32:15,234 --> 00:32:18,035 one last CODIS search before we do a familial." 600 00:32:18,037 --> 00:32:20,237 And they said we did one last search 601 00:32:20,239 --> 00:32:24,141 and your guy was just arrested and finally sampled for DNA 602 00:32:24,143 --> 00:32:26,743 and entered into the DNA database. 603 00:32:26,745 --> 00:32:28,245 We have a perfect match. 604 00:32:29,514 --> 00:32:31,415 Finally, this is the guy. 605 00:32:33,484 --> 00:32:35,552 [narrator] The previously unidentified male 606 00:32:35,554 --> 00:32:37,888 who left his DNA at the crime scene 607 00:32:37,890 --> 00:32:40,157 has been recently arrested in San Francisco 608 00:32:40,159 --> 00:32:42,125 on a shoplifting charge. 609 00:32:42,127 --> 00:32:45,796 His name is Anthony Quinn Hughes. 610 00:32:45,798 --> 00:32:46,997 [Lisa yelps] 611 00:32:46,999 --> 00:32:49,299 [Hofsass] Anthony Quinn Hughes had never come up 612 00:32:49,301 --> 00:32:51,268 in the course of the original investigation, 613 00:32:51,270 --> 00:32:54,004 and he was not on the radar. 614 00:32:54,006 --> 00:32:56,506 Now, this individual was arrested 615 00:32:56,508 --> 00:33:00,510 and he was finally swabbed as a felony arrest 616 00:33:00,512 --> 00:33:03,180 and that's how it connected to the unknown DNA profile 617 00:33:03,182 --> 00:33:07,684 that was hovering and waiting for someone to finally match. 618 00:33:07,686 --> 00:33:11,054 Thirteen years since the homicide of Lisa Valdez, 619 00:33:11,056 --> 00:33:13,123 and it was just an amazing feeling. 620 00:33:13,125 --> 00:33:16,226 I couldn't wait to figure out where this guy was, 621 00:33:16,228 --> 00:33:19,196 and get him in custody for Lisa's murder. 622 00:33:22,934 --> 00:33:24,735 [narrator] Thirteen years after the murder 623 00:33:24,737 --> 00:33:28,238 of Lisa Valdez, police match her killer's DNA 624 00:33:28,240 --> 00:33:31,274 from the scene to a man named Anthony Quinn Hughes, 625 00:33:31,276 --> 00:33:32,609 caught shoplifting 626 00:33:32,611 --> 00:33:35,045 in San Francisco's Tenderloin neighborhood. 627 00:33:36,581 --> 00:33:41,485 At that time, I'm contacted by Inspector Pam Hofsass 628 00:33:41,487 --> 00:33:43,587 in a state of great excitement. 629 00:33:43,589 --> 00:33:46,189 And I think her opening line may have been, 630 00:33:46,191 --> 00:33:48,191 "You won't believe it." 631 00:33:48,193 --> 00:33:52,662 Now, Anthony Hughes actually had fingerprints on file 632 00:33:52,664 --> 00:33:54,531 and she wanted me to compare 633 00:33:54,533 --> 00:33:56,666 the fingerprint from the toilet seat 634 00:33:56,668 --> 00:33:58,135 against this set of prints. 635 00:33:59,170 --> 00:34:01,438 I did that, and later the same day, 636 00:34:01,440 --> 00:34:05,342 I was able to return the compliment by telling her it's him. 637 00:34:06,377 --> 00:34:08,345 I felt like celebrating, frankly. 638 00:34:08,347 --> 00:34:10,447 It was a big day. 639 00:34:10,449 --> 00:34:13,750 [narrator] Now 52-years-old, Anthony Hughes would have 640 00:34:13,752 --> 00:34:17,120 been in his late 30s at the time of Lisa's murder. 641 00:34:17,122 --> 00:34:19,623 Investigators returned to the case files 642 00:34:19,625 --> 00:34:22,025 looking for a connection to Lisa. 643 00:34:23,561 --> 00:34:27,431 His name never came up in any of the conversations 644 00:34:27,433 --> 00:34:29,466 with friends of Lisa or the family. 645 00:34:29,468 --> 00:34:33,136 But further review of the original case files 646 00:34:33,138 --> 00:34:35,739 show that he was in her address book 647 00:34:35,741 --> 00:34:39,109 and he was on her answering machine. 648 00:34:39,111 --> 00:34:41,745 [narrator] With DNA and fingerprint matches, 649 00:34:41,747 --> 00:34:43,880 inspectors obtain an arrest warrant 650 00:34:43,882 --> 00:34:45,582 for Anthony Quinn Hughes. 651 00:34:47,251 --> 00:34:49,820 The challenge for us was to try to locate him, 652 00:34:49,822 --> 00:34:51,555 since he didn't have any known address 653 00:34:51,557 --> 00:34:53,523 through our database records. 654 00:34:53,525 --> 00:34:56,326 We just knew where he was arrested most recently. 655 00:34:56,328 --> 00:35:00,097 The idea was that he had to be from that area. 656 00:35:00,099 --> 00:35:04,167 Within 24 hours of that warrant being issued, 657 00:35:04,169 --> 00:35:05,735 Mr. Hughes jaywalked 658 00:35:05,737 --> 00:35:09,339 in front of a police car and was recognized 659 00:35:09,341 --> 00:35:10,874 and was taken into custody. 660 00:35:12,743 --> 00:35:14,177 [narrator] Anthony is questioned 661 00:35:14,179 --> 00:35:16,546 at San Francisco's police headquarters. 662 00:35:17,548 --> 00:35:19,649 [Hofsass] He was just kind of disheveled 663 00:35:19,651 --> 00:35:21,718 and appeared homeless, 664 00:35:21,720 --> 00:35:26,189 but he's very friendly and outgoing. 665 00:35:26,191 --> 00:35:27,724 [narrator] Inspectors show Anthony 666 00:35:27,726 --> 00:35:30,927 a photograph of Lisa Valdez. 667 00:35:30,929 --> 00:35:33,430 [Hofsass] When we first showed him the photo of Lisa, 668 00:35:33,432 --> 00:35:35,732 he says he doesn't know her. 669 00:35:35,734 --> 00:35:39,002 Slowly but surely, through the course of the interrogation, 670 00:35:39,004 --> 00:35:42,105 he admitted that he knew Lisa from high school, 671 00:35:42,107 --> 00:35:44,207 that they dated for a little bit. 672 00:35:44,209 --> 00:35:46,443 He was 17 and she was 16. 673 00:35:46,445 --> 00:35:50,147 He definitely felt like Lisa's mom did not approve of him, 674 00:35:50,149 --> 00:35:51,615 and then he moved on 675 00:35:51,617 --> 00:35:53,884 and got married and had children, 676 00:35:53,886 --> 00:35:56,119 and that kind of thing. 677 00:35:56,121 --> 00:35:59,122 And then I said, "When's the last time you had contact with her?" 678 00:35:59,124 --> 00:36:02,058 He said something like the late '80s. 679 00:36:02,060 --> 00:36:04,427 And he talked about how he had met her jogging 680 00:36:04,429 --> 00:36:07,631 around Lake Merritt in Oakland which is across the bay. 681 00:36:07,633 --> 00:36:09,065 And we know she was going to school 682 00:36:09,067 --> 00:36:10,734 at the college right there. 683 00:36:10,736 --> 00:36:12,469 So that was plausible. 684 00:36:12,471 --> 00:36:15,772 And then he talked about how he hadn't seen her 685 00:36:15,774 --> 00:36:18,708 since then, which we knew was not true. 686 00:36:18,710 --> 00:36:22,245 The late '90s, he was in Lisa's address book. 687 00:36:22,247 --> 00:36:26,449 His name, his address, his phone number, et cetera. 688 00:36:26,451 --> 00:36:27,984 [narrator] Inspectors press Anthony 689 00:36:27,986 --> 00:36:29,686 for details about what happened 690 00:36:29,688 --> 00:36:31,521 the last time he saw Lisa. 691 00:36:32,290 --> 00:36:34,758 [Hofsass] He wasn't forthcoming, 692 00:36:34,760 --> 00:36:37,727 but he said he bumped into her in Oakland. 693 00:36:37,729 --> 00:36:41,998 He said she took him to her dorm room and, you know, 694 00:36:42,000 --> 00:36:44,267 made some off-the-cuff comment about 695 00:36:44,269 --> 00:36:46,503 how many guys she slept with back in that day. 696 00:36:47,905 --> 00:36:50,440 His whole demeanor just got really angry 697 00:36:50,442 --> 00:36:52,976 and worked up and he kept saying, 698 00:36:52,978 --> 00:36:55,979 "I don't understand why she would do that," on and on and on. 699 00:36:55,981 --> 00:36:57,981 It was really kind of eye-popping. 700 00:36:58,716 --> 00:37:00,317 When Anthony says this, 701 00:37:00,319 --> 00:37:02,886 I don't think he necessarily realizes 702 00:37:02,888 --> 00:37:05,455 how that comment about how many partners Lisa has 703 00:37:05,457 --> 00:37:08,458 is so unusual, and why it would be unusual 704 00:37:08,460 --> 00:37:11,828 that this is something that he's fantasizing and thinking about. 705 00:37:11,830 --> 00:37:14,030 And so it's been all-consuming. 706 00:37:14,032 --> 00:37:17,300 It's leaking out even in the course of this questioning. 707 00:37:19,470 --> 00:37:21,671 [narrator] Detectives then confront Anthony Hughes 708 00:37:21,673 --> 00:37:24,007 with the fact they found his DNA 709 00:37:24,009 --> 00:37:26,042 at the scene of Lisa's murder. 710 00:37:26,044 --> 00:37:28,011 [Hofsass] He denied being in her condo. 711 00:37:29,313 --> 00:37:31,648 So we asked him how do you explain your DNA 712 00:37:31,650 --> 00:37:33,049 and your fingerprints there, 713 00:37:33,051 --> 00:37:35,385 and he could not provide an explanation at all. 714 00:37:37,488 --> 00:37:39,155 He said, "I want to die." 715 00:37:39,157 --> 00:37:41,524 Repeatedly. "I want to die." 716 00:37:41,526 --> 00:37:44,461 And then he did something pretty spectacular. 717 00:37:44,463 --> 00:37:46,263 My partner and I were looking at each other like, 718 00:37:46,265 --> 00:37:48,064 "Okay, so now he's going to confess." 719 00:37:48,066 --> 00:37:51,534 But he took the pen and he started to write out 720 00:37:51,536 --> 00:37:53,536 what we assumed was going to be a confession, 721 00:37:53,538 --> 00:37:55,272 instead he took the pen 722 00:37:55,274 --> 00:37:57,207 and started to stab himself. 723 00:37:57,209 --> 00:37:58,241 Oh, no, no, no. 724 00:37:58,243 --> 00:38:00,677 - Don't do that. Don't do that. - Don't do that. 725 00:38:00,679 --> 00:38:03,647 [Hofsass] Which is a form of admission, in a sense. 726 00:38:05,716 --> 00:38:07,517 [narrator] After 13 years, 727 00:38:07,519 --> 00:38:10,186 inspectors are finally able to piece together 728 00:38:10,188 --> 00:38:13,423 the final 24 hours of Lisa Valdez's life. 729 00:38:13,425 --> 00:38:15,492 [Lisa screaming] 730 00:38:15,494 --> 00:38:17,460 [Hofsass] Lisa and Anthony 731 00:38:17,462 --> 00:38:20,330 had some form of relationship back in the day, 732 00:38:20,332 --> 00:38:23,333 and years later, somehow reconnected. 733 00:38:23,335 --> 00:38:27,337 He was upset that she had boyfriends, and it seemed like 734 00:38:27,339 --> 00:38:32,342 he had some kind of jealousy and infatuation with Lisa. 735 00:38:32,344 --> 00:38:36,079 He was so besotted with her, and he was rejected. 736 00:38:37,415 --> 00:38:38,548 [narrator] In the early morning 737 00:38:38,550 --> 00:38:42,285 - of Sunday, May 17th, 1998... - [doorbell buzzes] 738 00:38:42,287 --> 00:38:44,487 Anthony finally decides to visit Lisa 739 00:38:44,489 --> 00:38:46,990 and confess his feelings. 740 00:38:46,992 --> 00:38:49,092 [Hofsass] It appears that Anthony made contact 741 00:38:49,094 --> 00:38:53,096 at Lisa's condo complex sometime after midnight. 742 00:38:53,098 --> 00:38:56,299 And he had to have been buzzed in by Lisa. 743 00:38:56,301 --> 00:38:58,435 [narrator] Some type of confrontation erupts 744 00:38:58,437 --> 00:39:00,136 between the two of them. 745 00:39:01,172 --> 00:39:04,341 He was somebody who was fixated on her, 746 00:39:04,343 --> 00:39:06,676 who didn't take no for an answer, 747 00:39:06,678 --> 00:39:10,146 who was rebuffed and reacted with a rage, 748 00:39:10,148 --> 00:39:13,450 and it starts to unravel pretty quickly. 749 00:39:13,452 --> 00:39:15,485 We can assume Anthony takes a knife 750 00:39:15,487 --> 00:39:17,320 and stabs her repeatedly. 751 00:39:17,322 --> 00:39:19,122 [Shouldice] The fact that her underwear 752 00:39:19,124 --> 00:39:21,791 had been torn away suggested strongly 753 00:39:21,793 --> 00:39:25,662 that there was a sexual element to this homicide. 754 00:39:25,664 --> 00:39:27,530 [Hofsass] So she's struggling with him, 755 00:39:27,532 --> 00:39:29,833 trying to get him to stop stabbing her. 756 00:39:29,835 --> 00:39:33,837 At around 1:26 in the morning when the downstairs neighbors 757 00:39:33,839 --> 00:39:36,339 heard a commotion, and then she's murdered. 758 00:39:39,443 --> 00:39:41,544 It was a rage killing. 759 00:39:42,513 --> 00:39:44,581 [narrator] After Anthony kills Lisa, 760 00:39:44,583 --> 00:39:47,917 he stays with her body for up to 30 hours. 761 00:39:47,919 --> 00:39:50,487 [Hofsass] At some point, he takes a token of hair. 762 00:39:50,489 --> 00:39:54,124 He cuts her hair at least two feet, and at some point, 763 00:39:54,126 --> 00:39:56,192 he cleaned up in the bathroom, 764 00:39:56,194 --> 00:39:59,129 and I would assume that once the housekeeper 765 00:39:59,131 --> 00:40:01,598 came by on Monday, May 18th, 766 00:40:01,600 --> 00:40:03,299 at around 10:00 in the morning, 767 00:40:03,301 --> 00:40:05,001 he might have thought that police would be coming 768 00:40:05,003 --> 00:40:07,470 right after, and he hightailed it. 769 00:40:07,472 --> 00:40:10,407 It's possible that Anthony was a sexual sadist, 770 00:40:10,409 --> 00:40:13,309 given the amount of time that was reported 771 00:40:13,311 --> 00:40:15,779 that he spent with Lisa's body, 772 00:40:15,781 --> 00:40:18,882 and that he has stabbed her numerous times. 773 00:40:20,885 --> 00:40:22,685 And he's taken her hair. 774 00:40:22,687 --> 00:40:25,822 He's asserting his dominance over her. 775 00:40:25,824 --> 00:40:28,091 Maybe in some ways, this could almost be 776 00:40:28,093 --> 00:40:30,593 a revenge, or vengeful fantasy, 777 00:40:30,595 --> 00:40:32,762 where he's actively been fantasizing 778 00:40:32,764 --> 00:40:36,499 about committing this aggressive act towards Lisa. 779 00:40:38,669 --> 00:40:41,337 [narrator] In the heinous killing of Lisa Valdez, 780 00:40:41,339 --> 00:40:43,673 Anthony Quinn Hughes is found guilty 781 00:40:43,675 --> 00:40:44,674 of second-degree murder 782 00:40:44,676 --> 00:40:47,377 and is sentenced to 16 years to life. 783 00:40:48,379 --> 00:40:50,547 There may still be a few unanswered questions 784 00:40:50,549 --> 00:40:52,449 as to the root of why. 785 00:40:53,551 --> 00:40:55,919 But the combined behaviors, 786 00:40:55,921 --> 00:40:59,289 timelines, and evidence, when put together, 787 00:40:59,291 --> 00:41:00,723 leaves you at a place 788 00:41:00,725 --> 00:41:02,759 where there's no other conclusion you can come to. 789 00:41:02,761 --> 00:41:04,828 And that was Anthony Hughes 790 00:41:04,830 --> 00:41:07,297 - is responsible for the murder of Lisa Valdez. - [doorbell buzzes] 791 00:41:09,400 --> 00:41:11,668 That was a really satisfying moment 792 00:41:11,670 --> 00:41:13,803 for all of us and for her family. 793 00:41:13,805 --> 00:41:15,738 That's all you can hope for. 794 00:41:15,740 --> 00:41:17,707 Some glimmer of relief. 795 00:41:17,709 --> 00:41:19,375 That's why you do this job. 796 00:41:19,377 --> 00:41:20,910 To just give families 797 00:41:20,912 --> 00:41:24,914 some measure of closure and finality. 798 00:41:24,916 --> 00:41:26,483 [Arntfield] Lisa's case, at the end of the day, 799 00:41:26,485 --> 00:41:28,151 wad solved through a combination 800 00:41:28,153 --> 00:41:31,354 of just dogged, shoe-leather detective work 801 00:41:31,356 --> 00:41:34,657 as well as the understanding of the importance 802 00:41:34,659 --> 00:41:36,993 of preserving evidence like DNA 803 00:41:36,995 --> 00:41:39,128 for the science of the future. 804 00:41:42,500 --> 00:41:44,901 [narrator] After more than 20 years, 805 00:41:44,903 --> 00:41:48,438 Lisa continues to live on in the memories of her family 806 00:41:48,440 --> 00:41:50,773 and the many friends whose lives she touched. 807 00:41:52,009 --> 00:41:53,977 She was a force to be reckoned with. 808 00:41:53,979 --> 00:41:55,545 Everyone loved her. 809 00:41:55,547 --> 00:41:58,748 She just really had a love of life, and I admired that. 810 00:41:58,750 --> 00:41:59,749 And I just felt like, 811 00:41:59,751 --> 00:42:01,251 how could he take her out like that? 812 00:42:01,253 --> 00:42:03,219 You know, brutal, senseless. 813 00:42:03,221 --> 00:42:04,621 And those are the kinds of cases 814 00:42:04,623 --> 00:42:06,456 that stick with you as a homicide detective. 815 00:42:06,458 --> 00:42:07,590 Come on. 816 00:42:07,592 --> 00:42:09,392 [Shouldice] She had a lot to bring to the world 817 00:42:09,394 --> 00:42:12,262 and you could see her personality. 818 00:42:12,264 --> 00:42:16,065 And she was energetic and funny. 819 00:42:16,067 --> 00:42:17,099 [giggles] 820 00:42:17,101 --> 00:42:20,069 Very outgoing, and I felt kind of privileged, 821 00:42:20,071 --> 00:42:22,972 in a way, to get that glimpse of her. 822 00:42:22,974 --> 00:42:25,275 And I know that's how her family remember her. 823 00:42:25,277 --> 00:42:27,310 And now it's how I remember her, too.