1 00:00:00,735 --> 00:00:04,003 [ominous music playing] 2 00:00:04,005 --> 00:00:06,405 This was an unplanned attack. 3 00:00:07,942 --> 00:00:10,409 She had suffered severe trauma. 4 00:00:12,413 --> 00:00:14,713 [Det. Everett] This complete innocent person 5 00:00:14,715 --> 00:00:16,215 is now taken from her family 6 00:00:18,119 --> 00:00:20,719 [Jennifer] She was an amazin mom to her kids. 7 00:00:20,721 --> 00:00:22,821 Her family was her world. 8 00:00:22,823 --> 00:00:26,225 The killer would be someone familiar with this facility. 9 00:00:26,227 --> 00:00:30,262 And the odds of them being there are still high. 10 00:00:31,732 --> 00:00:33,532 [Linda] He was a dark personality. 11 00:00:33,634 --> 00:00:37,102 He's someone who might commit or thrill kill 12 00:00:37,104 --> 00:00:38,904 for the pure excitement. 13 00:00:38,906 --> 00:00:40,806 [Det. Everett] Life insurance is a motive. 14 00:00:40,808 --> 00:00:42,941 Is this something that he concocted 15 00:00:42,943 --> 00:00:45,044 to get this massive payout? 16 00:00:45,046 --> 00:00:49,048 He had an issue with not liking women. 17 00:00:49,050 --> 00:00:52,384 He was prepared to take this rage out on her 18 00:00:52,386 --> 00:00:54,053 and make sure she didn't liv 19 00:00:54,154 --> 00:00:55,954 to tell whatever she saw them doing. 20 00:00:58,359 --> 00:01:00,692 [narrator] Every day in North America, 21 00:01:00,694 --> 00:01:03,462 dozens of people are murdere 22 00:01:03,531 --> 00:01:05,564 The key to solving the toughest of these homicides 23 00:01:05,666 --> 00:01:09,802 lies in the final 24 hours of the victim's life. 24 00:01:09,804 --> 00:01:11,703 To crack the case, 25 00:01:11,705 --> 00:01:15,140 detectives must reconstruct that critical timeline, 26 00:01:15,242 --> 00:01:18,043 the minutes and hours containing evidence 27 00:01:18,112 --> 00:01:20,245 that can help unlock the mystery 28 00:01:20,347 --> 00:01:21,613 and catch the killer. 29 00:01:30,958 --> 00:01:33,959 Florence, a thriving industrial center 30 00:01:34,027 --> 00:01:36,829 in the heart of Kentucky. 31 00:01:36,831 --> 00:01:39,498 [Det. Brian] Florence is a suburban community. 32 00:01:39,500 --> 00:01:40,933 It is very close to Cincinnati. 33 00:01:40,935 --> 00:01:42,401 We are just south. 34 00:01:42,403 --> 00:01:43,802 We have a lot of industry 35 00:01:43,804 --> 00:01:46,605 that chooses to be headquartered 36 00:01:46,607 --> 00:01:48,807 and distribute in our region. 37 00:01:51,512 --> 00:01:54,446 [Linda] Florence, Kentucky is considered one 38 00:01:54,515 --> 00:01:57,883 of the safest places in the entire state. 39 00:01:57,885 --> 00:02:00,519 We have a very large law enforcement presence 40 00:02:00,521 --> 00:02:04,623 and so the crime rate is extremely low. 41 00:02:06,327 --> 00:02:09,661 [narrator] But, the morning after Memorial Day, 42 00:02:09,730 --> 00:02:11,463 global pharmaceutical conglomerate, 43 00:02:11,565 --> 00:02:14,533 Thermo Fisher Scientific becomes the site 44 00:02:14,635 --> 00:02:17,002 of a real-life murder myster 45 00:02:20,508 --> 00:02:22,307 At 7:18, 46 00:02:22,309 --> 00:02:26,145 Boone County dispatch receives a 911 call from Ed Yuska. 47 00:02:26,246 --> 00:02:28,514 [man speaking] 48 00:02:28,516 --> 00:02:31,650 [Ed speaking] 49 00:02:31,752 --> 00:02:33,919 [Det. Everett] They had foun the body of a woman 50 00:02:33,921 --> 00:02:35,521 and they felt like she was dead. 51 00:02:37,024 --> 00:02:40,726 [Ed speaking] 52 00:02:43,230 --> 00:02:46,298 [wailing] 53 00:02:46,300 --> 00:02:48,300 I arrived there at 7:26 AM. 54 00:02:48,302 --> 00:02:51,036 When you walk into the front door 55 00:02:51,105 --> 00:02:53,505 of Thermo Fisher Scientific 56 00:02:53,507 --> 00:02:56,408 you can either look out over at the warehouse 57 00:02:56,410 --> 00:02:58,010 or go to the office area 58 00:02:58,012 --> 00:03:00,812 where the supervisors had their offices. 59 00:03:00,814 --> 00:03:03,715 The victim was laying around the corner 60 00:03:03,717 --> 00:03:06,518 by the door that goes into the office area. 61 00:03:06,520 --> 00:03:10,756 [Linda] A plastic trash bag had been tied over her head 62 00:03:10,857 --> 00:03:13,625 It was a very bloody scene. 63 00:03:13,627 --> 00:03:16,028 Her hands were bound behind her back 64 00:03:16,030 --> 00:03:18,964 with tape around her wrists. 65 00:03:19,033 --> 00:03:24,503 That would definitely lead us to the initial conclusion 66 00:03:24,505 --> 00:03:26,538 that this is a homicide. 67 00:03:30,044 --> 00:03:33,612 [narrator] The victim is 42-year-old Michelle Mockbee 68 00:03:33,614 --> 00:03:37,616 a loyal and trusted employe of Thermo Fisher. 69 00:03:37,618 --> 00:03:39,618 Michelle worked at Thermo Fisher Scientific 70 00:03:39,620 --> 00:03:42,254 for 16 years. 71 00:03:42,356 --> 00:03:45,023 She loved her job. It was like a big family 72 00:03:45,025 --> 00:03:46,725 and she fit right in. 73 00:03:46,727 --> 00:03:49,061 Everybody loved her there. 74 00:03:49,129 --> 00:03:50,862 [screaming] 75 00:03:50,931 --> 00:03:54,933 [Jennifer] Michelle was an amazing mom to her kids. 76 00:03:54,935 --> 00:03:57,936 They were her world and her family was her world 77 00:03:57,938 --> 00:04:00,505 And she also just loved baseball 78 00:04:00,507 --> 00:04:03,141 and loved the Cincinnati Red 79 00:04:03,210 --> 00:04:06,111 I miss her laugh, her smile 80 00:04:06,113 --> 00:04:08,146 I just miss her being there 81 00:04:08,248 --> 00:04:10,048 being there for all of us. 82 00:04:12,319 --> 00:04:13,785 [narrator] Heading up the investigation 83 00:04:13,787 --> 00:04:15,821 into the murder of Michelle Mockbee 84 00:04:15,823 --> 00:04:17,856 is Detective Everett Stahl 85 00:04:17,924 --> 00:04:20,225 of the Boone County Sheriff's Office. 86 00:04:20,227 --> 00:04:23,962 Assisting him is Detective Brian Cochran. 87 00:04:23,964 --> 00:04:26,865 I think the thing that made it infinitely differen 88 00:04:26,933 --> 00:04:29,134 was the potential scope for evidence 89 00:04:29,203 --> 00:04:31,637 and the size of the warehous 90 00:04:31,738 --> 00:04:34,506 The building where this event took place 91 00:04:34,508 --> 00:04:37,909 is actually about the size of four football fields. 92 00:04:41,015 --> 00:04:42,514 With the security in the building, 93 00:04:44,051 --> 00:04:47,319 they had a key pass system, 94 00:04:47,321 --> 00:04:49,755 so they did have monitoring of who came 95 00:04:49,823 --> 00:04:52,324 and went from that facility 96 00:04:52,326 --> 00:04:54,793 We suspect the killer would be someone 97 00:04:54,795 --> 00:04:56,862 that would be familiar with this facility. 98 00:04:56,963 --> 00:04:59,598 And the odds of them being there 99 00:04:59,600 --> 00:05:01,833 are still relatively high. 100 00:05:01,902 --> 00:05:04,236 And so everyone that was there was containe 101 00:05:04,305 --> 00:05:08,040 and not allowed to leave at that time. 102 00:05:08,042 --> 00:05:10,208 [narrator] To find Michelle Mockbee's killer, 103 00:05:10,210 --> 00:05:13,412 detectives will need to unravel the final 24 hours 104 00:05:13,414 --> 00:05:14,813 of her life. 105 00:05:18,952 --> 00:05:24,222 [Linda] Michelle's body had not been there that long 106 00:05:24,224 --> 00:05:25,857 Rigor mortis had not set in. 107 00:05:25,926 --> 00:05:27,826 She was still warm, 108 00:05:27,828 --> 00:05:30,962 and the blood itself looked fresh. 109 00:05:32,466 --> 00:05:35,400 Michelle had wounds all over her body. 110 00:05:35,402 --> 00:05:38,003 It was obvious that she had suffered 111 00:05:38,005 --> 00:05:41,206 severe, severe trauma. 112 00:05:41,208 --> 00:05:44,343 Michelle had a gash in her throat 113 00:05:44,444 --> 00:05:47,946 and some odd-looking cuts on her fingers, 114 00:05:47,948 --> 00:05:49,514 maybe defensive wounds 115 00:05:49,516 --> 00:05:51,850 from trying to defend her head. 116 00:05:51,952 --> 00:05:54,653 Her eyes were beginning to turn black and blue 117 00:05:54,755 --> 00:05:57,322 which a lot of times is associated with a wound 118 00:05:57,324 --> 00:06:00,225 where a person is struck in the nose. 119 00:06:02,129 --> 00:06:04,963 [Det. Everett] This appeare to be an unplanned attack 120 00:06:04,965 --> 00:06:07,933 and typically the weapon in this kind of case 121 00:06:07,935 --> 00:06:09,801 is a weapon of opportunity. 122 00:06:11,338 --> 00:06:12,571 What could cause this? 123 00:06:12,573 --> 00:06:16,608 It was pretty evident that the gash in her neck 124 00:06:16,610 --> 00:06:20,112 and the gash in her wrist were one sharp item. 125 00:06:20,114 --> 00:06:22,948 And we were looking for something heavy 126 00:06:23,049 --> 00:06:25,016 that could've caused the serrated cuts 127 00:06:25,018 --> 00:06:26,818 on her fingers. 128 00:06:26,820 --> 00:06:28,387 [Michael] The use of a makeshift weapon 129 00:06:28,389 --> 00:06:30,422 can complicate an investigation. 130 00:06:30,424 --> 00:06:32,891 Number one, police don't know who they're dealing with 131 00:06:32,893 --> 00:06:35,827 in terms of motive. 132 00:06:35,829 --> 00:06:37,229 When you have an offender for instance 133 00:06:37,331 --> 00:06:39,030 who brings a firearm to a scene, 134 00:06:39,032 --> 00:06:41,099 that lays out a certain set of circumstances 135 00:06:41,101 --> 00:06:44,770 that can lead you one way or another. 136 00:06:44,772 --> 00:06:46,938 The second challenge is, 137 00:06:46,940 --> 00:06:49,207 experts can match bullets removed from bodies 138 00:06:49,209 --> 00:06:50,809 to specific firearms 139 00:06:50,811 --> 00:06:53,111 or wounds on a body to specific blades. 140 00:06:53,113 --> 00:06:54,946 But when you're dealing with something 141 00:06:55,048 --> 00:06:56,815 really idiosyncratic, 142 00:06:56,817 --> 00:07:00,118 there's no way to necessarily quantify 143 00:07:00,120 --> 00:07:03,054 how those injuries were caused by that weapon. 144 00:07:04,525 --> 00:07:06,224 [narrator] Having examined the body, 145 00:07:06,226 --> 00:07:07,926 investigators turn their attention 146 00:07:07,928 --> 00:07:09,961 to the rest of the crime scene, 147 00:07:10,030 --> 00:07:14,199 discovering Michelle's purs and other personal items. 148 00:07:14,201 --> 00:07:15,801 The fact that Michelle was still carrying 149 00:07:15,803 --> 00:07:17,502 all of her personal items, 150 00:07:17,504 --> 00:07:20,639 told officers that she had not actually made I 151 00:07:20,707 --> 00:07:22,174 into her office yet. 152 00:07:22,176 --> 00:07:24,042 So it seemed as though 153 00:07:24,044 --> 00:07:28,313 Michelle was attacked closely in time to arriving 154 00:07:28,315 --> 00:07:31,716 Michelle's shoes were in her pursue, which was odd. 155 00:07:31,718 --> 00:07:33,852 So when we went back and we looked 156 00:07:33,921 --> 00:07:35,954 at the bottoms of her feet, 157 00:07:36,056 --> 00:07:38,190 they were clean. 158 00:07:38,192 --> 00:07:41,059 That would lead us to believe that the killer dragged her 159 00:07:41,128 --> 00:07:43,962 out on to that mezzanine are 160 00:07:44,064 --> 00:07:45,330 and that she did not walk out there 161 00:07:45,332 --> 00:07:46,698 under her own power. 162 00:07:46,700 --> 00:07:49,201 [narrator] Investigators now believe 163 00:07:49,203 --> 00:07:51,136 that Michelle was killed in another area 164 00:07:51,238 --> 00:07:52,838 of the second floor. 165 00:07:52,906 --> 00:07:55,040 And then her body was dumpe in the mezzanine. 166 00:07:56,610 --> 00:08:00,612 The body was moved approximately 75 to 100 ft. 167 00:08:00,614 --> 00:08:03,849 The path where we believe Michelle was dragged 168 00:08:03,950 --> 00:08:07,953 leads us from the storage area of the mezzanine 169 00:08:07,955 --> 00:08:10,355 into the office areas. 170 00:08:10,457 --> 00:08:11,957 In front of Michelle's offic 171 00:08:11,959 --> 00:08:14,693 there was a larger pool of blood. 172 00:08:14,695 --> 00:08:17,429 When that blood pool was treated with luminol, 173 00:08:17,431 --> 00:08:22,400 the trace pattern of someon wiping back and forth 174 00:08:22,402 --> 00:08:24,736 through that pool was revealed. 175 00:08:24,805 --> 00:08:27,572 It appeared that the killer was trying 176 00:08:27,574 --> 00:08:29,608 to manipulate the crime scen 177 00:08:29,610 --> 00:08:30,942 and clean it up. 178 00:08:35,816 --> 00:08:37,549 The detectives discovered 179 00:08:37,618 --> 00:08:39,618 that there were fresh pry marks 180 00:08:39,620 --> 00:08:42,254 on the door of Michelle's office 181 00:08:42,355 --> 00:08:44,256 and it appeared as though something sharp 182 00:08:44,357 --> 00:08:47,125 and blunt had been used on the door. 183 00:08:47,127 --> 00:08:50,061 Our theory is that, 184 00:08:50,130 --> 00:08:52,864 as she reached the top of the steps, 185 00:08:52,933 --> 00:08:54,900 Michelle has a confrontation 186 00:08:58,739 --> 00:09:01,406 She's punched, 187 00:09:01,408 --> 00:09:04,809 knocked to the ground, semi-unconscious, 188 00:09:04,811 --> 00:09:06,311 she's beaten in the head, 189 00:09:08,515 --> 00:09:11,416 her arms are taped behind her back, 190 00:09:11,418 --> 00:09:14,219 and then she is dragged out into the mezzanine. 191 00:09:15,856 --> 00:09:19,124 The severity of the violenc suggests that 192 00:09:19,126 --> 00:09:22,727 this was very much an impulsive impromptu crime. 193 00:09:22,729 --> 00:09:26,131 As though the victim had interrupted the offende 194 00:09:26,133 --> 00:09:28,099 or caught him doing something red-handed 195 00:09:28,101 --> 00:09:29,501 and that they were prepared 196 00:09:29,503 --> 00:09:31,102 to take this rage out on Michelle 197 00:09:31,104 --> 00:09:33,204 and make sure she didn't liv 198 00:09:33,206 --> 00:09:35,507 to tell whatever she saw them doing. 199 00:09:42,516 --> 00:09:45,216 [narrator] In the brutal murder of 42-year-old 200 00:09:45,218 --> 00:09:49,120 long-time Thermo Fisher employee, Michelle Mockbee, 201 00:09:49,122 --> 00:09:50,722 detectives have locked down 202 00:09:50,724 --> 00:09:53,258 the distribution center in Florence, Kentucky. 203 00:09:53,327 --> 00:09:57,629 Believing someone at the facility is her killer. 204 00:10:02,436 --> 00:10:05,337 [Linda] When Ed Yuska who ma the 911 call was interviewed 205 00:10:05,438 --> 00:10:08,840 he described, having a basically two decad 206 00:10:08,942 --> 00:10:11,476 or more long relationship with Michelle. 207 00:10:11,478 --> 00:10:14,412 They both worked in the second floor office spac 208 00:10:14,414 --> 00:10:15,947 in the building. 209 00:10:15,949 --> 00:10:17,515 And so the ones who worked up there 210 00:10:17,517 --> 00:10:19,250 were very close to each other. 211 00:10:19,352 --> 00:10:22,854 While Ed Yuska reported that Michelle normally arriv 212 00:10:22,956 --> 00:10:24,756 for work at 8:00, 213 00:10:24,825 --> 00:10:27,892 one day a month, she would be there at 7:00 A 214 00:10:27,894 --> 00:10:31,229 to collect time cards and do payroll. 215 00:10:33,734 --> 00:10:35,500 On the day of this offense, 216 00:10:35,502 --> 00:10:38,336 Michelle was coming in at about 7:00. 217 00:10:39,906 --> 00:10:41,506 Ed tells police, when he arrives 218 00:10:41,508 --> 00:10:43,241 at Thermo Fisher Scientific 219 00:10:43,309 --> 00:10:45,210 right around 7:00 AM 220 00:10:45,212 --> 00:10:50,015 and swipes his employee car which creates a record, 221 00:10:50,017 --> 00:10:51,850 when he arrived on the second level though, 222 00:10:51,918 --> 00:10:53,551 the lights are all out 223 00:10:53,653 --> 00:10:56,221 and so he has to walk down the hallway 224 00:10:56,223 --> 00:10:58,323 and around the corner to actually flip 225 00:10:58,325 --> 00:11:00,158 the lights on for that level 226 00:11:01,862 --> 00:11:03,962 So he flips on one of the lights 227 00:11:03,964 --> 00:11:06,564 and he sees the red stain on the carpet 228 00:11:06,633 --> 00:11:08,299 and he thought, "Well, that's kind of weird, 229 00:11:08,301 --> 00:11:09,601 it kind of looks like blood. 230 00:11:09,603 --> 00:11:11,636 I wonder if somebody got hurt." 231 00:11:13,407 --> 00:11:17,542 And they find Michelle's bod in the mezzanine area. 232 00:11:17,644 --> 00:11:20,712 Ed then calls 911 at 7:18. 233 00:11:23,417 --> 00:11:25,617 [narrator] Looking to confir Ed's story, 234 00:11:25,619 --> 00:11:27,552 police turned to the distribution center 235 00:11:27,654 --> 00:11:29,320 security footage. 236 00:11:29,322 --> 00:11:32,524 When officers review the surveillance video, 237 00:11:32,526 --> 00:11:34,826 they were able to confirm Ed Yuska's story 238 00:11:34,828 --> 00:11:37,729 that he had arrived right around 7:00 AM. 239 00:11:39,366 --> 00:11:42,100 However, Michelle had arrived in the parking lot 240 00:11:42,102 --> 00:11:44,803 at 5:53 AM. 241 00:11:44,805 --> 00:11:46,404 Backing off from the time 242 00:11:46,406 --> 00:11:49,240 that the 911 call came in at 7:18, 243 00:11:49,309 --> 00:11:51,142 we're looking at a window of time 244 00:11:51,211 --> 00:11:53,278 of basically about an hour and a half 245 00:11:53,280 --> 00:11:55,046 for this to have occurred. 246 00:11:55,148 --> 00:11:57,315 However, because she was still carrying all 247 00:11:57,317 --> 00:11:59,718 of her personal affects and it didn't appear as though 248 00:11:59,720 --> 00:12:01,820 she'd actually even made it to her office, 249 00:12:01,822 --> 00:12:05,023 officers believe that she was attacked 250 00:12:05,025 --> 00:12:07,726 literally within minutes of entering the building, 251 00:12:07,728 --> 00:12:11,229 probably in the neighborhoo of 6:00 AM. 252 00:12:11,231 --> 00:12:12,430 [narrator] Having narrowed down 253 00:12:12,432 --> 00:12:14,065 Michelle's time of death, 254 00:12:14,134 --> 00:12:17,135 detectives continue with their investigation. 255 00:12:17,204 --> 00:12:21,039 And then a man arrives at Thermo Fisher, 256 00:12:21,108 --> 00:12:23,007 begging to speak to Michelle 257 00:12:24,411 --> 00:12:27,212 Dan Mockbee who was Michelle's husband 258 00:12:27,214 --> 00:12:31,716 arrived at Thermo Fisher at about 9:30 that morning. 259 00:12:31,718 --> 00:12:36,521 We made notification that Michelle was deceased. 260 00:12:36,523 --> 00:12:40,358 He had almost no control over himself 261 00:12:40,427 --> 00:12:42,694 when I gave him the news. 262 00:12:42,696 --> 00:12:45,230 He just seemed destroyed. 263 00:12:45,232 --> 00:12:49,501 I gave him a minute to kind of absorb the information. 264 00:12:49,503 --> 00:12:52,303 But obviously we were lookin at him as a suspect 265 00:12:52,305 --> 00:12:54,806 because you always look at the husband as a suspect 266 00:12:54,808 --> 00:12:56,741 in something like this. 267 00:12:56,843 --> 00:12:58,409 And I hate to say it, 268 00:12:58,411 --> 00:13:01,212 but sometimes people are really good at acting, 269 00:13:01,214 --> 00:13:03,281 like they're upset. 270 00:13:03,283 --> 00:13:05,917 Besides the fact that he was Michelle's husband 271 00:13:05,919 --> 00:13:07,151 because he was a supervisor, 272 00:13:07,153 --> 00:13:10,555 Dan had all of the keys and codes necessary 273 00:13:10,624 --> 00:13:11,956 to be able to enter the building 274 00:13:11,958 --> 00:13:14,225 and bypass the security system. 275 00:13:15,929 --> 00:13:17,629 [narrator] Police escort Dan Mockbee 276 00:13:17,631 --> 00:13:19,464 into Thermo Fisher to be interviewed. 277 00:13:19,532 --> 00:13:23,301 I'd ask Dan, you know, "What was Michelle doing? 278 00:13:23,303 --> 00:13:25,103 Why was she coming in so early?" 279 00:13:25,105 --> 00:13:26,938 And he said that it was the start 280 00:13:27,007 --> 00:13:28,940 of summer break for their ki 281 00:13:29,009 --> 00:13:31,242 and so she wanted to come in early, 282 00:13:31,311 --> 00:13:32,844 she wanted to get her paperwork done, 283 00:13:32,913 --> 00:13:34,045 and send off 284 00:13:34,114 --> 00:13:35,613 so she could come home 285 00:13:35,615 --> 00:13:37,248 and take the girls to the po 286 00:13:37,317 --> 00:13:39,417 and start enjoying this first day of summer 287 00:13:39,419 --> 00:13:41,753 with the kids. 288 00:13:41,822 --> 00:13:44,122 Dan said that Michelle had taken the kids 289 00:13:44,124 --> 00:13:46,925 to her mom's house to spend the night, 290 00:13:46,927 --> 00:13:49,260 and then it was date night for him and Michelle. 291 00:13:49,329 --> 00:13:52,063 They went to Applebee's for dinner. 292 00:13:52,065 --> 00:13:54,933 When they got home, it was around 11:00 PM 293 00:13:55,035 --> 00:13:56,801 and they went to bed. 294 00:13:56,803 --> 00:14:02,440 Michelle slept upstairs and Dan slept on the couch. 295 00:14:02,509 --> 00:14:04,008 Michelle got up and she got ready 296 00:14:04,010 --> 00:14:06,444 and she left at 5:30 297 00:14:06,513 --> 00:14:09,280 and Dan knows it was 5:30 because when she was leaving 298 00:14:09,282 --> 00:14:11,516 she stopped by, gave him a kiss on the cheek 299 00:14:11,518 --> 00:14:16,154 and headed out and that woke him up. 300 00:14:16,256 --> 00:14:19,624 Because Dan Mockbee reports being home alone 301 00:14:19,626 --> 00:14:22,327 between the time Michelle left at 5:30 AM 302 00:14:22,329 --> 00:14:24,362 and the time he shows up at Thermo Fisher Scientific 303 00:14:24,431 --> 00:14:25,496 at 9:30, 304 00:14:25,498 --> 00:14:26,931 there's no one that can vouc 305 00:14:26,933 --> 00:14:29,234 for the fact that Dan was home alone 306 00:14:29,335 --> 00:14:33,404 or the alibi that he was providing the detectives. 307 00:14:33,406 --> 00:14:37,442 And then also it really bothered me a little bit 308 00:14:37,510 --> 00:14:39,944 that Dan and Michelle would not sleep together. 309 00:14:39,946 --> 00:14:41,613 In my role as a detective, 310 00:14:41,615 --> 00:14:45,016 I've seen people who are on their way 311 00:14:45,018 --> 00:14:46,751 to either divorce 312 00:14:46,820 --> 00:14:48,820 or some kind of domestic dispute 313 00:14:48,822 --> 00:14:50,822 typically sleeping separate 314 00:14:50,824 --> 00:14:53,524 And that means there's trouble in the relationship 315 00:14:53,526 --> 00:14:56,227 there's something going on inside their marriage 316 00:14:56,229 --> 00:14:58,429 that is causing them to want to sleep separate. 317 00:15:01,434 --> 00:15:05,503 We needed to work real hard on figuring out, 318 00:15:05,505 --> 00:15:09,040 was Dan telling us the truth 319 00:15:09,109 --> 00:15:10,642 We did also discover 320 00:15:10,710 --> 00:15:13,211 that Dan and Michelle were in some debt. 321 00:15:13,213 --> 00:15:16,915 So that was something that was very important to look at. 322 00:15:16,917 --> 00:15:19,150 Michelle also had life insurance. 323 00:15:19,252 --> 00:15:23,955 I see life insurance as a potential motive. 324 00:15:23,957 --> 00:15:25,123 It's a lot of money. 325 00:15:25,125 --> 00:15:27,125 And the beneficiary is Dan. 326 00:15:29,229 --> 00:15:30,995 And so, is this something 327 00:15:30,997 --> 00:15:33,898 that he would've potentially concocted 328 00:15:33,900 --> 00:15:36,601 to try get this massive payout? 329 00:15:40,707 --> 00:15:42,640 [narrator] Having establishe a motive, 330 00:15:42,742 --> 00:15:44,409 investigators need to determine 331 00:15:44,411 --> 00:15:46,044 whether Dan had the opportunity 332 00:15:46,112 --> 00:15:48,646 to commit the crime. 333 00:15:48,748 --> 00:15:50,481 [Linda] There is no evidenc that Dan had been on 334 00:15:50,483 --> 00:15:53,051 the premises of Thermo Fisher Scientific 335 00:15:53,152 --> 00:15:56,454 or entered the building in any way on that morning. 336 00:15:56,523 --> 00:15:57,755 Prior to 9:30, 337 00:15:57,824 --> 00:15:59,624 he was not on surveillance video 338 00:15:59,626 --> 00:16:01,626 and his swipe card was not used 339 00:16:01,628 --> 00:16:04,162 on any of the doors in the building that morning 340 00:16:04,230 --> 00:16:07,332 So he was eliminated as a person of interest. 341 00:16:10,203 --> 00:16:12,136 Not for one minute did I ever think 342 00:16:12,238 --> 00:16:15,306 that Dan had anything to do with Michelle's murder. 343 00:16:15,308 --> 00:16:17,208 He just lost the love of his life. 344 00:16:20,947 --> 00:16:22,714 [narrator] Investigators asked Dan 345 00:16:22,716 --> 00:16:24,916 if he knows of anyone at Thermo Fisher 346 00:16:24,918 --> 00:16:27,685 with a grudge against Michelle. 347 00:16:27,687 --> 00:16:30,822 Dan says that someone had tried to break 348 00:16:30,824 --> 00:16:33,624 into Michelle's office months prior. 349 00:16:33,626 --> 00:16:35,526 After that happened, 350 00:16:35,528 --> 00:16:38,963 Thermo Fisher secured the door to her office. 351 00:16:39,065 --> 00:16:42,800 She had kept like petty cash and maybe some valuables. 352 00:16:42,802 --> 00:16:44,936 But after the break in, 353 00:16:45,071 --> 00:16:48,106 Thermo Fisher removed all of that from her office 354 00:16:48,108 --> 00:16:50,108 Dan was not able to provide 355 00:16:50,110 --> 00:16:51,943 any more information about who it was 356 00:16:51,945 --> 00:16:53,544 that would've broken into the office 357 00:16:53,613 --> 00:16:56,514 because they weren't able to determine who it was. 358 00:16:57,951 --> 00:16:59,917 [narrator] Investigators now wonder, 359 00:16:59,919 --> 00:17:01,452 could Michelle have been killed 360 00:17:01,521 --> 00:17:03,254 in a robbery gone wrong? 361 00:17:04,624 --> 00:17:07,125 If Michelle was to exit that stairwell 362 00:17:07,127 --> 00:17:10,962 and someone was attempting to break into that office, 363 00:17:11,064 --> 00:17:14,298 Michelle would have been nearly face to face with the 364 00:17:14,300 --> 00:17:16,534 and there's a strong likelihood 365 00:17:16,603 --> 00:17:20,438 that the person would've been surprised by Michelle. 366 00:17:20,540 --> 00:17:22,640 [Linda] The question in min would be, 367 00:17:22,709 --> 00:17:24,809 what in the world could be located in Michelle's offic 368 00:17:24,811 --> 00:17:26,344 that was important enough 369 00:17:26,446 --> 00:17:27,945 that somebody would be willing to break in 370 00:17:28,047 --> 00:17:29,514 to get to it. 371 00:17:35,922 --> 00:17:37,822 [narrator] Working the theor that dedicated 372 00:17:37,824 --> 00:17:40,324 Thermo Fisher employee Michelle Mockbee 373 00:17:40,326 --> 00:17:43,628 was the victim of a robbery gone wrong. 374 00:17:43,630 --> 00:17:45,530 Investigators shift their focus 375 00:17:45,532 --> 00:17:48,232 to the employees working at the distribution center 376 00:17:48,334 --> 00:17:51,135 the morning of her murder. 377 00:17:51,237 --> 00:17:55,006 I mean, this conjures images of the board game clue 378 00:17:55,008 --> 00:17:56,841 or Murder on the Orient Express 379 00:17:56,910 --> 00:17:59,310 where you have a handful of people 380 00:17:59,312 --> 00:18:01,012 in an enclosed space 381 00:18:01,014 --> 00:18:02,513 and you have to figure out 382 00:18:02,515 --> 00:18:04,248 which one of them did it and why. 383 00:18:04,350 --> 00:18:06,918 Detectives were able to eliminate eight employee 384 00:18:06,920 --> 00:18:08,653 who were on scene 385 00:18:08,754 --> 00:18:10,521 before the 911 call was made 386 00:18:10,523 --> 00:18:12,423 simply because of productivity reports 387 00:18:12,425 --> 00:18:14,025 that identified everything they were doing 388 00:18:14,027 --> 00:18:15,126 in the building 389 00:18:15,128 --> 00:18:17,428 as well as their indication 390 00:18:17,430 --> 00:18:20,865 that they saw each other in the warehouse. 391 00:18:20,900 --> 00:18:22,333 We did a criminal history check 392 00:18:22,335 --> 00:18:24,035 with the other employees. 393 00:18:24,104 --> 00:18:26,604 This guy, Doug Tungate had some issues with alcohol 394 00:18:26,606 --> 00:18:29,207 he was on probation from an alcohol arrest. 395 00:18:29,209 --> 00:18:31,843 And so certainly that starts piquing interes 396 00:18:31,944 --> 00:18:33,945 in Doug Tungate. 397 00:18:33,947 --> 00:18:36,114 Doug is a temporary employee 398 00:18:36,116 --> 00:18:39,717 assigned to this morning cre 399 00:18:39,719 --> 00:18:44,122 as someone who would put product away. 400 00:18:44,124 --> 00:18:46,023 He had been convicted several years earlier 401 00:18:46,025 --> 00:18:48,059 of receiving stolen property. 402 00:18:48,128 --> 00:18:50,294 There were indications that someone attempted 403 00:18:50,296 --> 00:18:51,829 to break into Michelle's office 404 00:18:51,831 --> 00:18:54,198 and so someone who had a criminal history 405 00:18:54,200 --> 00:18:55,633 for theft-related defenses 406 00:18:55,735 --> 00:18:56,801 would be someone investigato 407 00:18:56,803 --> 00:18:58,603 look at more closely. 408 00:18:58,605 --> 00:19:01,305 The fact that Michelle had petty cash accessible, 409 00:19:01,307 --> 00:19:03,141 could Doug have been desperate enough 410 00:19:03,209 --> 00:19:06,511 to go in with the intent of stealing 411 00:19:06,513 --> 00:19:07,745 and been interrupted 412 00:19:07,847 --> 00:19:10,414 and reacted the way he did? 413 00:19:10,416 --> 00:19:12,950 [thuds] 414 00:19:12,952 --> 00:19:14,785 We learned that Doug Tungate arrived 415 00:19:14,787 --> 00:19:17,955 at Thermo Fisher Scientific at 5:40 in the morning. 416 00:19:17,957 --> 00:19:19,490 Sat in his car for a few minutes 417 00:19:19,492 --> 00:19:23,394 and then went in and clocked in at 5:45. 418 00:19:23,396 --> 00:19:25,229 And so he arrived just minut 419 00:19:25,231 --> 00:19:27,999 before Michelle was murdered. 420 00:19:28,001 --> 00:19:29,901 [narrator] With Doug in their crosshairs, 421 00:19:29,903 --> 00:19:32,703 investigators interview him on the premises. 422 00:19:32,705 --> 00:19:35,540 [Det. Everett] Doug seemed very nervous 423 00:19:35,641 --> 00:19:38,009 but he was very upset by the whole thing 424 00:19:38,011 --> 00:19:39,610 at the same time. 425 00:19:39,612 --> 00:19:42,813 When he arrived, he entered the building 426 00:19:42,815 --> 00:19:46,817 but he wasn't permitted to clock in until 5:45. 427 00:19:46,819 --> 00:19:48,819 And so he just hung out for a couple of minutes 428 00:19:48,821 --> 00:19:50,621 by the timecard machine. 429 00:19:52,625 --> 00:19:54,725 Warehouse supervisor, Joe Siegert, 430 00:19:54,727 --> 00:19:57,828 pulls up on his forklift 431 00:19:57,830 --> 00:19:59,797 and they start having a chat. 432 00:19:59,799 --> 00:20:05,503 And Doug has his coffee sitting on the time clock. 433 00:20:05,505 --> 00:20:07,104 He said he looked up and he saw Michelle 434 00:20:07,106 --> 00:20:08,739 walking in towards the time clock 435 00:20:08,841 --> 00:20:11,042 and he just said, "Oh, I apologize." 436 00:20:11,143 --> 00:20:12,910 She said, "No, that's fine. Good morning." 437 00:20:12,912 --> 00:20:14,912 And she grabbed the time cards 438 00:20:14,914 --> 00:20:17,348 and then went through the door right next to the time clock. 439 00:20:19,252 --> 00:20:21,619 So after he saw Michelle, he went into the break room 440 00:20:21,621 --> 00:20:23,321 he sat down for a minute. 441 00:20:23,323 --> 00:20:25,623 And then once it was 6:00, he went out 442 00:20:25,625 --> 00:20:29,527 and he started doing his jo for the day. 443 00:20:29,529 --> 00:20:33,164 [narrator] While there are no witnesses to Doug's work 444 00:20:33,232 --> 00:20:34,932 investigators find another w 445 00:20:34,934 --> 00:20:37,602 to confirm his alibi. 446 00:20:37,604 --> 00:20:39,604 Thermo Fisher Scientific employed 447 00:20:39,606 --> 00:20:41,639 a computer-generated system 448 00:20:42,942 --> 00:20:44,709 to scan in items 449 00:20:44,711 --> 00:20:47,044 as they are being removed from trucks 450 00:20:47,146 --> 00:20:48,946 and then scanned again 451 00:20:48,948 --> 00:20:52,216 once they're placed where they ultimately will be. 452 00:20:52,218 --> 00:20:53,884 The program itself is done 453 00:20:53,953 --> 00:20:56,220 to basically keep track of inventory 454 00:20:56,222 --> 00:20:57,955 and ensure productivity 455 00:20:58,024 --> 00:21:00,157 as far as the employees are concerned. 456 00:21:00,259 --> 00:21:02,727 But upon examining Doug Tungate's record, 457 00:21:02,729 --> 00:21:04,729 there is a gap of about 20 minutes 458 00:21:04,731 --> 00:21:06,664 right when he began his shif 459 00:21:06,766 --> 00:21:09,133 which was in the 6:00 hour. 460 00:21:09,202 --> 00:21:10,334 [Det. Everett] That was concerning to us 461 00:21:10,336 --> 00:21:13,771 that there were zero scans in that time frame 462 00:21:13,773 --> 00:21:16,007 that Michelle was killed. 463 00:21:16,009 --> 00:21:19,143 So Doug Tungate did have that opportunity 464 00:21:19,212 --> 00:21:20,511 to commit the murder. 465 00:21:22,315 --> 00:21:24,115 Doug explains to us that, 466 00:21:24,117 --> 00:21:26,050 "Yes, I clocked in at 6:00 467 00:21:26,152 --> 00:21:28,219 but I have this paperwork I have to fill out 468 00:21:28,221 --> 00:21:30,021 with the equipment that I'm gonna use" 469 00:21:30,023 --> 00:21:33,057 and that's the reason behind that gap 470 00:21:33,059 --> 00:21:34,558 in his activity. 471 00:21:34,627 --> 00:21:36,661 Other employees, they rememb 472 00:21:36,729 --> 00:21:38,696 seeing Doug out on the floor 473 00:21:38,698 --> 00:21:41,198 And so we have corroboration. 474 00:21:41,200 --> 00:21:44,035 [narrator] Based on the workers' statements, 475 00:21:44,037 --> 00:21:45,603 investigators conclude 476 00:21:45,605 --> 00:21:47,505 that Doug likely didn't have the opportunity 477 00:21:47,507 --> 00:21:50,041 to kill Michelle. 478 00:21:50,043 --> 00:21:51,609 They move on to the other worker 479 00:21:51,611 --> 00:21:54,211 who saw her arrived at Thermo Fisher, 480 00:21:54,213 --> 00:21:56,614 Joe Siegert. 481 00:21:56,616 --> 00:21:59,350 [Linda] Joe Siegert was one of the last people 482 00:21:59,419 --> 00:22:00,851 to see Michelle alive. 483 00:22:00,953 --> 00:22:02,053 So he was a person 484 00:22:02,154 --> 00:22:03,821 that detectives definitely wanted 485 00:22:03,823 --> 00:22:06,223 to take a closer look at. 486 00:22:06,225 --> 00:22:09,226 [Det. Everett] So, when we are conducting interviews 487 00:22:09,228 --> 00:22:12,129 Joe speaks to the location manager. 488 00:22:12,131 --> 00:22:14,832 And Joe's only question was 489 00:22:14,901 --> 00:22:17,601 "Am I getting paid for the rest of the day?" 490 00:22:17,603 --> 00:22:18,836 I kind of stopped in my tracks. 491 00:22:18,905 --> 00:22:20,338 And I thought, 492 00:22:20,439 --> 00:22:22,406 "This is the question you're asking 493 00:22:22,408 --> 00:22:25,409 when your co-worker's been murdered upstairs?" 494 00:22:25,411 --> 00:22:29,113 Joe's known Michelle since she started. 495 00:22:29,115 --> 00:22:31,315 And so, we start questionin 496 00:22:31,317 --> 00:22:33,951 whether or not there is something 497 00:22:33,953 --> 00:22:35,920 between and he and Michelle that caused him 498 00:22:35,922 --> 00:22:39,256 to have an issue with her. 499 00:22:39,325 --> 00:22:41,625 [narrator] Detectives question Joe, 500 00:22:41,627 --> 00:22:43,327 digging into his lack of emotion 501 00:22:43,329 --> 00:22:45,629 around Michelle's death. 502 00:22:45,631 --> 00:22:48,566 [Linda] Joe is just sort of an odd person. 503 00:22:48,634 --> 00:22:50,101 He didn't congregate 504 00:22:50,236 --> 00:22:52,803 with the other employees in the break room. 505 00:22:52,805 --> 00:22:55,005 He would always go out to the parking lot by himself. 506 00:22:55,007 --> 00:22:56,507 He was just kind of a loner 507 00:22:58,211 --> 00:23:01,812 And then Joe told us that he had gone upstairs 508 00:23:01,814 --> 00:23:04,448 to the area of the crime sce 509 00:23:04,517 --> 00:23:07,718 and he had gotten bags of rubber bands. 510 00:23:33,846 --> 00:23:35,613 Joe was in the area of the crime scene 511 00:23:35,615 --> 00:23:37,148 at the time of the murder, 512 00:23:37,216 --> 00:23:39,417 so we looked at Joe as one of the people 513 00:23:39,419 --> 00:23:43,053 that we really needed to sink our teeth into. 514 00:23:43,055 --> 00:23:46,056 [narrator] Investigators ask Joe about his whereabouts 515 00:23:46,058 --> 00:23:49,693 during the window of time that Michelle was murdered. 516 00:23:49,695 --> 00:23:51,228 Joe Siegert arrived on 517 00:23:51,230 --> 00:23:55,099 Thermo Fisher Scientific property about 4:50 AM. 518 00:23:55,101 --> 00:23:57,234 [Det. Everett] Joe was one of the four supervisors. 519 00:23:57,336 --> 00:23:58,736 So he was one of the folks 520 00:23:58,838 --> 00:24:00,704 that actually had a key to the door 521 00:24:00,706 --> 00:24:02,540 and he had the alarm code. 522 00:24:02,608 --> 00:24:07,511 Then Joe had scanned his car got clocked in at 5:00 AM. 523 00:24:07,513 --> 00:24:10,648 And then he started unloading a truck at 5:30. 524 00:24:10,716 --> 00:24:13,217 He says that he went upstair at some point, 525 00:24:13,219 --> 00:24:14,652 he got these rubber bands. 526 00:24:14,720 --> 00:24:18,389 And then he unloaded the trucks straight up until 7:0 527 00:24:18,391 --> 00:24:20,724 which was the time that all of the employees went on break. 528 00:24:22,528 --> 00:24:25,729 Upon reviewing the employee productivity records, 529 00:24:25,731 --> 00:24:27,865 it did appear that there was a large gap 530 00:24:27,933 --> 00:24:30,501 in Joe Siegert's timeline 531 00:24:30,503 --> 00:24:32,736 right around the time that Michelle would have arrived 532 00:24:32,838 --> 00:24:34,839 So we collected DNA, 533 00:24:34,874 --> 00:24:37,408 fingerprints, shoe impressions, 534 00:24:37,410 --> 00:24:39,944 and Joe Siegert's cell phone 535 00:24:39,946 --> 00:24:43,013 [narrator] When investigator examined Joe's phone, 536 00:24:43,015 --> 00:24:45,816 they make a surprising discovery. 537 00:24:45,818 --> 00:24:47,952 Detectives did take a close look 538 00:24:47,954 --> 00:24:52,122 at Joe Siegert's social media related activity 539 00:24:52,124 --> 00:24:54,592 and Joe was sort of a dark personality. 540 00:24:54,594 --> 00:24:56,427 He liked horror movies 541 00:24:56,429 --> 00:24:58,963 and often posted things about different horror films 542 00:24:58,965 --> 00:25:03,734 And so detectives obviously were a little concerned. 543 00:25:03,736 --> 00:25:05,503 When investigators see 544 00:25:05,505 --> 00:25:07,938 that Joseph's reaction is very flat, 545 00:25:08,007 --> 00:25:09,940 he has a blunted affect when talking 546 00:25:09,942 --> 00:25:13,210 about Michelle and the homicide, that's a red flag. 547 00:25:13,212 --> 00:25:15,412 And then when they find that he has this penchant 548 00:25:15,414 --> 00:25:17,515 for watching gore or horror movies, 549 00:25:17,517 --> 00:25:21,318 that could also be another indicator that perhaps... 550 00:25:21,320 --> 00:25:24,021 he's someone who might commit a thrill kill 551 00:25:24,023 --> 00:25:26,624 for the pure excitement of that act 552 00:25:26,626 --> 00:25:29,226 and what that would feel lik to have that kind of power 553 00:25:29,228 --> 00:25:30,528 over another human being. 554 00:25:32,665 --> 00:25:35,933 [narrator] With suspicion swirling around Joe, 555 00:25:35,935 --> 00:25:38,202 police have him take a polygraph. 556 00:25:38,204 --> 00:25:39,603 Joe passed the polygraph. 557 00:25:41,340 --> 00:25:46,510 He was also witnessed by employees doing his work 558 00:25:46,512 --> 00:25:51,815 And so, we were able to eliminate Joe Siegert. 559 00:25:51,817 --> 00:25:55,319 [narrator] Having eliminate Joe Siegert as a suspect, 560 00:25:55,321 --> 00:25:58,522 detectives find themselves at a crossroads. 561 00:25:58,524 --> 00:26:00,991 But then, Ed Yuska comes forward 562 00:26:00,993 --> 00:26:02,726 with new information 563 00:26:02,728 --> 00:26:05,829 that shifts the direction of the investigation. 564 00:26:05,831 --> 00:26:08,599 Ed immediately told them that he was missing 565 00:26:08,601 --> 00:26:10,100 an industrial tape gun 566 00:26:10,102 --> 00:26:13,203 that he kept on his shelf in his office. 567 00:26:14,340 --> 00:26:15,506 These tape guns are unique, 568 00:26:15,508 --> 00:26:17,374 and that they have a serrated edge, 569 00:26:17,376 --> 00:26:18,943 sharp metal edges, 570 00:26:19,011 --> 00:26:20,578 as well as a big blunt force trauma 571 00:26:20,580 --> 00:26:22,346 of the tape roll. 572 00:26:22,448 --> 00:26:25,215 We brought the tape gun to the medical examiner. 573 00:26:25,217 --> 00:26:28,519 He was able to match the angles of the tape gun 574 00:26:28,521 --> 00:26:30,521 up to the injuries on her head. 575 00:26:30,523 --> 00:26:33,290 That was a light bulb moment 576 00:26:33,292 --> 00:26:35,726 This was our murder weapon. 577 00:26:39,732 --> 00:26:42,299 [narrator] In the vicious homicide of Michelle Mockbee 578 00:26:42,301 --> 00:26:45,302 detectives have identified the murder weapon, 579 00:26:45,304 --> 00:26:47,504 an industrial tape gun. 580 00:26:47,506 --> 00:26:49,707 Finding it could put them one step closer 581 00:26:49,709 --> 00:26:52,009 to catching the killer. 582 00:26:52,011 --> 00:26:53,711 Every available unit 583 00:26:53,713 --> 00:26:56,814 was involved in searching the entire facility 584 00:26:56,816 --> 00:26:58,515 for the missing tape gun. 585 00:27:00,152 --> 00:27:01,752 [Det. Brian] We did not fin the tape gun. 586 00:27:01,821 --> 00:27:06,457 It has somehow gotten out of the building. 587 00:27:06,492 --> 00:27:08,726 We have to come to the conclusion 588 00:27:08,728 --> 00:27:11,128 that someone took the evidence away 589 00:27:11,130 --> 00:27:14,264 from the scene intentionally. 590 00:27:14,333 --> 00:27:18,702 [Linda] There were two outside security cameras. 591 00:27:18,704 --> 00:27:22,439 Upon reviewing the surveillance videos, 592 00:27:22,508 --> 00:27:24,508 officers were able to determine 593 00:27:24,510 --> 00:27:26,810 that there was a red pickup truck 594 00:27:26,812 --> 00:27:28,345 that actually left 595 00:27:28,414 --> 00:27:30,514 the Thermo Fisher Scientific property 596 00:27:30,516 --> 00:27:33,450 right at 6:30 AM. 597 00:27:33,552 --> 00:27:36,053 That same pickup truck is seen returning 598 00:27:36,055 --> 00:27:38,422 to the Thermo Fisher Scientific parking lot 599 00:27:38,424 --> 00:27:40,524 at 7:05 AM. 600 00:27:40,526 --> 00:27:44,628 My partner on the case says that's the janitor, 601 00:27:44,630 --> 00:27:46,430 David Dooley, that's his truck. 602 00:27:46,432 --> 00:27:50,034 David actually left on the backside of the building 603 00:27:50,036 --> 00:27:52,403 which is a route not many people take. 604 00:27:52,405 --> 00:27:54,204 The fact that he took that other route out 605 00:27:54,206 --> 00:27:57,107 was something that really caused us 606 00:27:57,109 --> 00:27:58,442 a lot of suspicion. 607 00:28:00,713 --> 00:28:02,546 David Dooley served as the janitor 608 00:28:02,648 --> 00:28:04,615 for the entire facility. 609 00:28:04,617 --> 00:28:07,217 He had within his cleaning closet 610 00:28:07,219 --> 00:28:08,919 literally all of the materia 611 00:28:08,921 --> 00:28:10,754 that you would need to try to clean up 612 00:28:10,823 --> 00:28:12,723 your crime scene. 613 00:28:12,725 --> 00:28:14,525 [narrator] Looking for more informatio 614 00:28:14,527 --> 00:28:16,560 about their latest suspect, 615 00:28:16,628 --> 00:28:19,029 detectives run David Dooley's name 616 00:28:19,031 --> 00:28:20,764 through the police database 617 00:28:22,101 --> 00:28:24,301 David Dooley had a criminal history 618 00:28:24,303 --> 00:28:27,037 that included multiple convictions 619 00:28:27,039 --> 00:28:28,739 for burglary and theft, 620 00:28:28,841 --> 00:28:30,908 and he had spent considerable amount of time 621 00:28:30,910 --> 00:28:32,743 in the penitentiary. 622 00:28:32,845 --> 00:28:35,612 David has been in and out of jail a lot. 623 00:28:35,614 --> 00:28:39,149 That tells me he's got major issues with authority. 624 00:28:39,251 --> 00:28:40,851 Combine that with the fact 625 00:28:40,919 --> 00:28:43,320 that David has the criminal attitude 626 00:28:43,322 --> 00:28:45,022 of wanting to get ahead 627 00:28:45,024 --> 00:28:47,424 without doing the work. 628 00:28:47,426 --> 00:28:49,426 You have a recipe for disaster. 629 00:28:51,130 --> 00:28:52,629 [narrator] Armed with this new information 630 00:28:52,631 --> 00:28:54,665 about David's criminal recor 631 00:28:54,733 --> 00:28:58,135 investigators sit him down for questioning. 632 00:28:58,204 --> 00:28:59,603 When David Dooley was interviewed, 633 00:28:59,605 --> 00:29:01,939 he indicated that he had been working 634 00:29:02,040 --> 00:29:03,607 as a contract employee 635 00:29:03,609 --> 00:29:05,008 at Thermo Fisher Scientific 636 00:29:05,010 --> 00:29:08,045 for a period of about six years. 637 00:29:08,114 --> 00:29:11,248 His duties involved cleaning the office area 638 00:29:11,317 --> 00:29:13,150 and the warehouse. 639 00:29:13,252 --> 00:29:16,754 Dave and Michelle would communicate 640 00:29:16,855 --> 00:29:19,056 from time to time via email, 641 00:29:19,158 --> 00:29:21,492 talking about the need for certain supplies 642 00:29:21,494 --> 00:29:23,260 to complete his job. 643 00:29:26,532 --> 00:29:27,998 [narrator] Detectives take a closer look 644 00:29:28,000 --> 00:29:29,500 at David's timeline, 645 00:29:29,502 --> 00:29:31,135 to see if he had the opportunity 646 00:29:31,203 --> 00:29:33,036 to commit the murder. 647 00:29:33,138 --> 00:29:35,806 David arrived at the building about 20 minutes 648 00:29:35,808 --> 00:29:38,742 before his shift would've started at 5:00 AM 649 00:29:38,811 --> 00:29:41,044 He started his work in the break room 650 00:29:41,146 --> 00:29:42,813 and went up to the second level 651 00:29:42,815 --> 00:29:44,214 using the elevator. 652 00:29:44,216 --> 00:29:46,950 At about 5:30, emptied the trash, 653 00:29:46,952 --> 00:29:48,719 and indicated that he was back down 654 00:29:48,721 --> 00:29:51,622 on the first level cleaning by 5:35. 655 00:30:10,709 --> 00:30:12,409 [Linda] He then laid out a timeline 656 00:30:12,411 --> 00:30:14,111 of working his way through the building, 657 00:30:14,113 --> 00:30:15,646 right up until the time 658 00:30:15,747 --> 00:30:19,449 that the 911 call came in at 7:18 AM. 659 00:30:19,485 --> 00:30:21,518 David said that he is typically not seen 660 00:30:21,520 --> 00:30:22,886 in the office area 661 00:30:22,888 --> 00:30:25,322 because no one is there at that point. 662 00:30:25,324 --> 00:30:28,125 And it's hard for anybody to corroborate the fact 663 00:30:28,127 --> 00:30:30,427 that he was in there cleanin 664 00:30:30,429 --> 00:30:34,464 because everybody else is out in the warehouse working. 665 00:30:34,533 --> 00:30:36,700 [narrator] When detectives confront David with the fac 666 00:30:36,702 --> 00:30:39,803 that he left the facility following Michelle's murder 667 00:30:39,805 --> 00:30:43,507 he claims there's an easy explanation for that. 668 00:30:43,509 --> 00:30:45,943 He brushed it off as, "Oh, I forgot to tell you." 669 00:30:46,044 --> 00:30:47,711 He said he'd left that morning 670 00:30:47,713 --> 00:30:51,782 because his wife had taken an Ambien the night prior 671 00:30:51,784 --> 00:30:56,520 and he was concerned that she was not feeling wel 672 00:30:56,522 --> 00:30:58,455 "So, I needed to go home and check on her." 673 00:30:58,557 --> 00:31:02,226 [David speaking] 674 00:31:02,228 --> 00:31:04,127 - [man speaking] - [David speaking] 675 00:31:04,129 --> 00:31:06,063 - [man speaking] - [David speaking] 676 00:31:06,164 --> 00:31:07,164 [man speaking] 677 00:31:07,266 --> 00:31:09,433 [David speaking] 678 00:31:09,534 --> 00:31:12,035 With the nature of Michelle's injuries 679 00:31:12,037 --> 00:31:16,807 and the biological evidence that we had upstairs, 680 00:31:16,809 --> 00:31:20,310 we made a point to look at everybody's shoes 681 00:31:20,312 --> 00:31:23,714 We did a visual inspection of their clothes. 682 00:31:23,716 --> 00:31:25,415 The one thing that was noticed about Davi 683 00:31:25,417 --> 00:31:27,417 was how clean he was. 684 00:31:27,419 --> 00:31:29,319 Detectives also were aware 685 00:31:29,321 --> 00:31:31,722 from walking around the building themself, 686 00:31:31,724 --> 00:31:33,657 that the building itself was filthy. 687 00:31:33,726 --> 00:31:36,593 And so, it was unusual that David did not appear 688 00:31:36,595 --> 00:31:39,529 to have any dirt on him anywhere. 689 00:31:42,234 --> 00:31:45,002 [narrator] Now, believing th David may have gone home 690 00:31:45,004 --> 00:31:49,506 when he left Thermo Fisher from 6:30 to 7:05 AM, 691 00:31:49,508 --> 00:31:52,509 detectives turned to David's wife Janet, 692 00:31:52,511 --> 00:31:55,812 who also works at the compan to check his alibi. 693 00:31:55,814 --> 00:31:59,116 When asked if she had seen David that morning, 694 00:31:59,118 --> 00:32:00,717 she indicated that she knew 695 00:32:00,719 --> 00:32:03,420 that he had left around 5:1 or before then, 696 00:32:03,422 --> 00:32:06,023 and that she did not see him again after that. 697 00:32:06,025 --> 00:32:09,760 He hadn't returned home, which contradicted his story 698 00:32:09,828 --> 00:32:12,930 So, obviously, there are huge problems. 699 00:32:14,600 --> 00:32:15,832 [narrator] Unable to corroborate 700 00:32:15,901 --> 00:32:17,801 David's version of events, 701 00:32:17,803 --> 00:32:19,102 investigators returned 702 00:32:19,104 --> 00:32:21,204 to the company surveillance video 703 00:32:21,206 --> 00:32:22,739 looking for evidence that could link him 704 00:32:22,808 --> 00:32:25,442 to Michelle's murder. 705 00:32:25,511 --> 00:32:27,444 One of my responsibilities in this investigation 706 00:32:27,513 --> 00:32:29,947 was to review 30 days' wort 707 00:32:30,015 --> 00:32:32,950 of Thermo Fisher surveillance footage. 708 00:32:33,051 --> 00:32:35,953 And what we found was that every other day, 709 00:32:36,021 --> 00:32:39,923 David Dooley comes in one way and goes out the same way. 710 00:32:39,925 --> 00:32:41,758 Except this one day, where he left 711 00:32:41,860 --> 00:32:43,427 around the back side of the building. 712 00:32:44,964 --> 00:32:47,631 It was completely out of routine for him. 713 00:32:47,633 --> 00:32:49,299 The question is why would David go out 714 00:32:49,301 --> 00:32:50,801 and then, back in at an entrance 715 00:32:50,803 --> 00:32:52,703 that he's never used before? 716 00:32:52,705 --> 00:32:54,504 The most plausible explanati 717 00:32:54,506 --> 00:32:56,940 is that he wanted to skulk around unnoticed 718 00:32:56,942 --> 00:32:59,810 as he disposed of the weapo he used to murder Michelle. 719 00:33:05,517 --> 00:33:07,651 [narrator] In the murder of beloved 42-year-old, 720 00:33:07,720 --> 00:33:10,988 HR professional and mom of two, Michelle Mockbee, 721 00:33:10,990 --> 00:33:14,124 detectives have zeroed in on a prime suspect, 722 00:33:14,126 --> 00:33:16,426 the only person to leave Thermo Fisher 723 00:33:16,428 --> 00:33:17,961 after the murder, 724 00:33:18,030 --> 00:33:21,498 janitor David Dooley. 725 00:33:21,500 --> 00:33:23,400 The employees reported walking 726 00:33:23,402 --> 00:33:26,436 into the building with David Dooley, 727 00:33:26,538 --> 00:33:29,206 and then nobody reports seeing him again 728 00:33:29,208 --> 00:33:32,409 until he returns on the property at 7:05 AM, 729 00:33:32,411 --> 00:33:34,945 after Michelle had been brutally murdered. 730 00:33:34,947 --> 00:33:38,815 At 7:05, Joe Siegert is sitting in his car 731 00:33:38,817 --> 00:33:40,117 taking a break 732 00:33:40,119 --> 00:33:42,919 and he said that he saw David pull in. 733 00:33:42,921 --> 00:33:45,155 David actually walked over to him, to his car 734 00:33:45,224 --> 00:33:47,457 and pointed out that, 735 00:33:47,526 --> 00:33:49,659 "Oh, I had to run home and change my pants 736 00:33:49,761 --> 00:33:51,895 because I ripped my pants." 737 00:33:51,897 --> 00:33:54,231 Joe thought that it was very odd 738 00:33:54,233 --> 00:33:56,900 that he would come over to make a point to tell him 739 00:33:56,902 --> 00:33:59,903 about why it was that he lef the property. 740 00:33:59,905 --> 00:34:01,838 But another reason why it was odd to Joe Siegert 741 00:34:01,907 --> 00:34:04,007 is because all persons who work 742 00:34:04,009 --> 00:34:05,509 at Thermo Fisher Scientific 743 00:34:05,511 --> 00:34:07,544 are required to be wearing steel toe boots 744 00:34:07,646 --> 00:34:09,212 while they're on the propert 745 00:34:09,214 --> 00:34:10,814 And at that point, David Dooley 746 00:34:10,816 --> 00:34:14,017 was wearing white tennis shoes. 747 00:34:14,019 --> 00:34:16,553 The other employees saw him come in earlier in the day 748 00:34:16,588 --> 00:34:19,956 and he was wearing boots at that time. 749 00:34:20,025 --> 00:34:22,125 Detectives believed that he had 750 00:34:22,127 --> 00:34:24,327 taken the boots with him and disposed of them 751 00:34:24,329 --> 00:34:27,898 after he left Thermo Fisher Scientific. 752 00:34:27,900 --> 00:34:29,199 Following up on the work 753 00:34:29,201 --> 00:34:30,801 David had been assigned that morning, 754 00:34:30,803 --> 00:34:33,303 it turns out that a number of these tasks 755 00:34:33,305 --> 00:34:35,639 had been shirked and never completed. 756 00:34:35,707 --> 00:34:37,174 Specifically, he had failed to clean out 757 00:34:37,176 --> 00:34:38,809 a number of garbage cans, 758 00:34:38,811 --> 00:34:40,844 which suggested that he was doing something else 759 00:34:40,913 --> 00:34:42,946 between 6:00 and 7:00 AM. 760 00:34:42,948 --> 00:34:45,615 More than enough time to commit Michelle's murder 761 00:34:45,617 --> 00:34:48,952 and try to cover his tracks 762 00:34:48,954 --> 00:34:51,121 We never found the actual weapon. 763 00:34:51,123 --> 00:34:55,125 Nor did we find the clothes that Mr. Dooley was wearing 764 00:34:55,127 --> 00:34:59,629 But what we did find was screwdrivers. 765 00:34:59,631 --> 00:35:01,364 This one specific screwdrive 766 00:35:01,433 --> 00:35:04,935 kind of matched the marks on Michelle's door. 767 00:35:05,036 --> 00:35:06,703 That screwdriver was sent 768 00:35:06,705 --> 00:35:08,338 to the Kentucky State Polic crime lab 769 00:35:08,407 --> 00:35:10,941 and they find that it was a match. 770 00:35:10,943 --> 00:35:13,510 [narrator] The evidence against David is mounting. 771 00:35:13,512 --> 00:35:17,414 But there's still the question of motive. 772 00:35:17,416 --> 00:35:19,716 The question still remained, 773 00:35:19,718 --> 00:35:22,819 why would David feel the need 774 00:35:22,821 --> 00:35:25,889 to break into Michelle's office to begin with? 775 00:35:25,891 --> 00:35:28,325 [Det. Everett] Part of the struggle with figuring out 776 00:35:28,327 --> 00:35:32,429 what the motive might be is what was in it for David 777 00:35:32,431 --> 00:35:34,397 Was he looking for something 778 00:35:34,399 --> 00:35:38,034 specific inside Michelle's office? 779 00:35:38,136 --> 00:35:41,138 Joe Siegert tells investigators months before, 780 00:35:41,206 --> 00:35:44,007 suspicions had arose about the hours 781 00:35:44,009 --> 00:35:46,209 that were being put in 782 00:35:46,211 --> 00:35:49,045 by Janet and David at the facility. 783 00:35:49,047 --> 00:35:52,015 And David and Janet were recently admonished 784 00:35:52,017 --> 00:35:54,818 that they needed to be a lot more careful 785 00:35:54,820 --> 00:35:57,320 with their use of the time clock. 786 00:35:59,558 --> 00:36:00,857 [narrator] Investigators question 787 00:36:00,959 --> 00:36:02,926 if there was more to the matter, 788 00:36:02,928 --> 00:36:04,828 than just David and Janet not being careful 789 00:36:04,830 --> 00:36:08,098 about when they punched in and out. 790 00:36:08,100 --> 00:36:10,600 When detectives searched Michelle Mockbee's office, 791 00:36:10,602 --> 00:36:13,336 they'd found all of the timecards 792 00:36:13,405 --> 00:36:16,806 that David and Janet Dooley had turned in 793 00:36:16,808 --> 00:36:20,510 over a period of months, if not years. 794 00:36:20,512 --> 00:36:22,012 It was clear from those timecards 795 00:36:22,014 --> 00:36:24,614 that Janet was clocked in every day 796 00:36:24,616 --> 00:36:27,717 over and above what her contract called for 797 00:36:27,719 --> 00:36:30,720 That was something pretty interesting 798 00:36:30,722 --> 00:36:33,423 because through the surveillance video, 799 00:36:33,425 --> 00:36:35,926 on multiple days, 800 00:36:35,928 --> 00:36:38,161 I just see David's truck entering 801 00:36:38,230 --> 00:36:40,430 and I don't see Janet's car entering. 802 00:36:40,432 --> 00:36:42,199 I thought, "Well, let me start looking 803 00:36:42,201 --> 00:36:44,201 at Janet's text messages." 804 00:36:44,203 --> 00:36:47,837 She is actually talking about being at home 805 00:36:47,939 --> 00:36:50,707 while she's clocked in at Thermo Fisher. 806 00:36:50,709 --> 00:36:54,945 They were bilking the compan getting double, triple paid 807 00:36:54,947 --> 00:36:56,346 Light bulb that goes off is 808 00:36:56,448 --> 00:36:58,515 David was going into Michelle's office 809 00:36:58,517 --> 00:37:02,219 to collect his and Janet's timecards to remove those, 810 00:37:02,221 --> 00:37:03,620 and to prevent them 811 00:37:03,622 --> 00:37:06,656 from getting caught by the company. 812 00:37:06,758 --> 00:37:09,559 Michelle had discovered that Janet and David 813 00:37:09,661 --> 00:37:11,061 were stealing from the company. 814 00:37:12,698 --> 00:37:14,698 [narrator] Continuing to build their case, 815 00:37:14,700 --> 00:37:16,399 detectives questioned David again 816 00:37:16,401 --> 00:37:19,603 about the inconsistencies in his timeline. 817 00:37:38,624 --> 00:37:40,223 [Det. Everett] Initially, he said that he was 818 00:37:40,225 --> 00:37:42,826 in a back hallway cleaning. 819 00:37:42,828 --> 00:37:45,061 Well, then, he said he was never 820 00:37:45,130 --> 00:37:46,529 in the back hallway cleaning. 821 00:38:12,524 --> 00:38:14,391 [Everett] When we continued to confront him, 822 00:38:14,393 --> 00:38:15,725 he got very defensive. 823 00:38:17,462 --> 00:38:19,262 [Linda] One of the detectives came I 824 00:38:19,364 --> 00:38:22,732 with another industrial tape gun... 825 00:38:25,137 --> 00:38:27,304 that was similar to the one that would've been used 826 00:38:27,306 --> 00:38:29,506 as the murder weapon in this case. 827 00:38:29,508 --> 00:38:33,109 And you could see David's demeanor visibly changed 828 00:38:33,111 --> 00:38:35,712 and immediately, he terminated the interview 829 00:38:35,714 --> 00:38:39,115 and said that he wanted an attorney. 830 00:38:39,117 --> 00:38:41,418 [Det. Brian] It was kind of his "Oh, no" moment. 831 00:38:43,422 --> 00:38:46,356 That told me that he knows that a tape gun 832 00:38:46,424 --> 00:38:49,125 was used to kill Michelle. 833 00:38:49,127 --> 00:38:51,528 [narrator] With this final piece of the puzzle, 834 00:38:51,530 --> 00:38:54,064 detectives are now able to reconstruct 835 00:38:54,066 --> 00:38:56,933 Michelle Mockbee's final 24-hours. 836 00:38:59,805 --> 00:39:01,805 Michelle Mockbee leaves the house 837 00:39:01,807 --> 00:39:06,543 at 5:30 on May 29th, 2012. 838 00:39:06,611 --> 00:39:09,512 Michelle arrives at Thermo Fisher Scientific 839 00:39:09,514 --> 00:39:11,548 at 5:53 AM. 840 00:39:11,649 --> 00:39:15,318 She had a brief interaction with some employees 841 00:39:15,320 --> 00:39:19,823 and proceeds up the back stairwell to her office. 842 00:39:19,825 --> 00:39:23,226 So, Michelle enters the office area at 6:00 AM. 843 00:39:23,228 --> 00:39:24,627 She catches David Dooley 844 00:39:24,629 --> 00:39:26,229 trying to break in to her office 845 00:39:26,231 --> 00:39:29,599 to get the timecards from the past 846 00:39:29,601 --> 00:39:31,801 that proved the theft from the company. 847 00:39:31,803 --> 00:39:34,504 David Dooley was surprised 848 00:39:34,506 --> 00:39:36,573 by Michelle arriving much earlier 849 00:39:36,641 --> 00:39:39,409 than she was expected. 850 00:39:39,411 --> 00:39:41,311 Michelle said something to h 851 00:39:41,313 --> 00:39:44,080 about why are you breaking into my office. 852 00:39:44,082 --> 00:39:46,316 And David had an issue 853 00:39:46,318 --> 00:39:49,219 with not liking women, basically. 854 00:39:49,221 --> 00:39:51,321 And so, for a woman to talk to him like that, 855 00:39:51,323 --> 00:39:53,456 that wouldn't sit well with him. 856 00:39:53,558 --> 00:39:56,059 [Linda] He coldcocked her and she was knocked out. 857 00:39:56,061 --> 00:39:58,328 David Dooley decided that Michelle Mockbee 858 00:39:58,330 --> 00:40:00,063 could not be alive to tell the tale 859 00:40:00,131 --> 00:40:01,998 of what happened to her that day. 860 00:40:02,000 --> 00:40:05,535 And so, he took the industrial tape gun, 861 00:40:05,604 --> 00:40:08,538 proceeded to bludgeon Michelle in the head, 862 00:40:08,640 --> 00:40:12,142 he restrains her with tape from the industrial tape gun 863 00:40:14,813 --> 00:40:18,615 [Everett] David drags Michelle to the mezzanine, 864 00:40:18,617 --> 00:40:20,817 collects her belongings, 865 00:40:20,819 --> 00:40:22,619 and places them out by the body. 866 00:40:24,423 --> 00:40:26,556 And then, David leaves Thermo Fisher 867 00:40:26,658 --> 00:40:31,060 in his red truck at 6:30 that morning. 868 00:40:31,062 --> 00:40:33,663 [Keira] It may seem that this is a black swan event. 869 00:40:33,731 --> 00:40:36,032 It's completely rare and random. 870 00:40:36,134 --> 00:40:39,202 But actually, he's driven himself to this behavior. 871 00:40:39,204 --> 00:40:42,038 Each of the decisions he makes to commit fraud 872 00:40:42,140 --> 00:40:43,706 and try to cover his tracks 873 00:40:43,708 --> 00:40:45,442 is an essence a psychopathic snowball 874 00:40:45,510 --> 00:40:48,211 that continues to build until he's forced 875 00:40:48,213 --> 00:40:50,313 to kill Michelle to save himself, 876 00:40:50,315 --> 00:40:53,616 and so this is a fraud detection homicide. 877 00:40:55,320 --> 00:40:56,753 [Linda] In many ways, this investigation 878 00:40:56,855 --> 00:40:58,354 was like the game Clue. 879 00:40:58,456 --> 00:41:01,958 Because you knew the where and you knew the when, 880 00:41:02,026 --> 00:41:04,761 but the who and the what were the main things 881 00:41:04,863 --> 00:41:06,563 that detectives needed to focused on. 882 00:41:06,598 --> 00:41:09,332 And so, you know, peeling away the layers 883 00:41:09,401 --> 00:41:10,934 of this investigation 884 00:41:10,936 --> 00:41:13,937 was much like playing one of those games 885 00:41:14,038 --> 00:41:16,339 where it's a process of elimination 886 00:41:16,441 --> 00:41:19,008 until it left us with only one man standing. 887 00:41:20,946 --> 00:41:23,546 [narrator] David Dooley is convicted of murder 888 00:41:23,648 --> 00:41:25,248 and tampering with evidence 889 00:41:25,317 --> 00:41:27,951 He is sentenced to life in prison. 890 00:41:28,052 --> 00:41:33,556 The hard part is you look at this mother 891 00:41:33,658 --> 00:41:37,727 who just was wanting to get her job done early 892 00:41:37,729 --> 00:41:39,429 so she could spend the day with the kids, 893 00:41:39,431 --> 00:41:41,798 and that's the shame of it, 894 00:41:41,800 --> 00:41:46,736 was that Michelle was so devoted 895 00:41:46,805 --> 00:41:48,505 to her husband and her kids 896 00:41:48,507 --> 00:41:51,508 And this completely innocent person 897 00:41:51,510 --> 00:41:55,578 who's done nothing wrong to anybody 898 00:41:55,580 --> 00:41:58,047 is now taken from her family. 899 00:41:58,049 --> 00:42:00,049 [Jennifer] I want people to remember 900 00:42:00,051 --> 00:42:01,351 how kind Michelle was 901 00:42:01,452 --> 00:42:03,219 and just how loving she was 902 00:42:03,221 --> 00:42:04,654 We think about her a lot. 903 00:42:04,756 --> 00:42:06,623 She'll always be in our hear 904 00:42:06,625 --> 00:42:09,826 and she'll just always be remembered. 905 00:42:09,828 --> 00:42:12,629 On the year anniversary of her murder, 906 00:42:12,631 --> 00:42:15,198 we all went to the Reds game, 907 00:42:15,200 --> 00:42:19,102 and we all wore these red wristbands in her memory 908 00:42:19,104 --> 00:42:21,704 So, we know she'll be smiling down at that. 909 00:42:21,706 --> 00:42:23,740 We definitely still celebrate Michelle 910 00:42:23,841 --> 00:42:25,408 as if she was still here.