I mean, it is my mother, isnt it . And thats. Thats your gravestone. Which is weird because you look okay to me. Please just let me explain. I didnt mean for any of do you have any idea what its like to grow up in the shadow of a dead baby . I was never enough you are more than enough. She loves you. I know you think i should have told her. I should have told the both yeah. Yeah. I want to help you. I dont want your help and i dont want your kidney, either. Yeah. Yeah, i. I thought that was you. You just. Cailin, please, dont throw your life away because of what you think of me. I dont want any part of you living in me. Cailin what is going on . You followed me . Well, you took our car. So you called the police . Well. Hope. Theres something i need to tell you. Im paddy doyles daughter. What . Im your daughter. I know that must be strange to hear. Dont say that. This is my daughter. Paddy told you that i died at birth. I am not looking to be your daughter. I just wanted you to know just stop i dont know who you are or what you want but ive had just about as much as i can bear. Cailin, honey. Lets just go. [crying] i dont know what to say. Out of all the scenarios i thought of. That wasnt one of em. Shes in denial. Shes in shock. Imagine, how would you react if a grown woman walked up to you and said. How you doing . Im your dead baby. And what about cailin . Maura, you cant force your kidney on her. I wish i could. I dont know. I never, ever meant to cause them any pain. Its just so awful. Well, i tried to warn you. Family sucks. Blow. No. No. Im all cried out. Okay . Im done. Im done. And, actually. Im a little insulted. Whatd i do . That girl rejected my kidney. The nerve. I know. Right . Its a very nice kidney. Im sure it is. You should keep it. Im just saying. Reporter at 5 53 a. M. , a Security Camera captured michelles car as it arrived at the parking lot. She stopped by the warehouses time clock and headed upstairs to her office. About an hour later, a supervisor named ed yuska noticed a big stain on the upstairs hallway carpet. He started looking around the area, with help from a coworker, the janitor, david dooley. Ed was out on the mezzanine just part of the ways, and i was holding the door. And there was just he said, theres a dead body laying there. Reporter what did it look like . I just saw from the knees down. I didnt see the whole thing. But honestly im glad i didnt look because id never been around anything like that. It was kind of frightening for me. Reporter someone inside Thermo Fisher had killed Michelle Mockbee. But who . And just as puzzling, why . When we come back, lockdown. The perpetrator could still be there. In this giant warehouse, a giant question had someone carried out the perfect crime . Theres actually industrial strength bleach there. Rubber gloves everywhere. If you needed to commit a murder, this place had it. Does your carpet ever feel rough and dirty . 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You cant breathe through your nose. Suddenly, youre a mouthbreather. A mouthbreather how can anyone sleep like that . Well, just put on a breathe right strip and pow it instantly opens your nose up to 38 more than Cold Medicine alone. So you can breathe and sleep. Shut your mouth and say goodnight mouthbreathers. Breathe right parents help their children discover the world animals, seen those before but sometimes they do it on their own mmm foot wow food for giants kids discover the world with their mouths detergent is harmful if swallowed, so keep laundry pacs up and away from children reporter Tuesday Morning after memorial day deputies from the Boone County Sheriffs Department responded to a call of a person down at the Thermo Fisher warehouse. They rolled up to the front door and were directed upstairs. Deputy joe gregory was with them. We went over to the victim, assessed that she was dead. There was plastic wrapped around her head. There was plastic wrap around the back of her hands. Reporter the deputies did a tactical search of the area to secure it. You definitely have your guns drawn because the perpetrator could still be there. Reporter there was no sign of anyone upstairs, but the csi team that arrived soon after found hints of what had happened. A trail of blood in the hallway. A larger blood stain showing smears when lit up, as though someone had attempted a cleanup. The body itself was found in an unused mezzanine area where someone had also stashed michelles purse and a bag obviously we felt like the body had been moved. Reporter putting the story together was now the job of lead investigators bruce mcvay and everett stahl. Tell me a little bit about the building where this takes place. Thermo Fisher Scientific is a company that ships medical supplies. Kind of like an amazon for medical supplies. Its a large warehouse. Reporter how large . Try the size of four football fields. Thats ulcerinducing acreage for an investigator searching for clues. But on the plus side, the warehouse was also a secure facility. Detectives say its pretty hard to get inside if youre not an employee. So you know that your suspect is one of those people in the building . Thats right. Reporter the Sheriffs Department put Thermo Fisher on lockdown. No one allowed in or out. Deputies took a head count. There were 13 workers on site. Detectives began interviewing im sitting actually closer than you and i are sitting to the people that im interviewing. And i can see with each person i talk to, theres no blood, theres no evidence that they have been involved in anything. Reporter if its one of these people youre interviewing, theyve disguised it well . They have. Reporter dan mockbee says back at home, he started hearing about an incident at the warehouse. They werent letting people into the building. They were turning them away. Reporter dan says he tried calling his wife and other coworkers, but no one was picking up. And thats when i started getting nervous. Reporter he drove over and was escorted inside by detective stahl. Everett stahl sat me down at a table and started to ask me a few questions. And i looked at him and i said excuse me, officer. My wife works here. I really need to know that shes all right. And thats when he told me that she was deceased. His reaction was pretty i still had to press on, and i still had to move forward with my looking at him as a possible suspect. Reporter while dan mockbee was being questioned, michelles family was starting to get word from the scene. I think i threw the phone down. And im just like no, no, this isnt happening. This isnt real. Lockdown at the warehouse was lifted. I had each person walk through their day and it seemed like a normal day for everybody. Nobody stood out. Reporter and then, every Thermo Fisher employee was sent home. As investigators wrapped up their first major sweep of the building, they were puzzled. There was really nothing out of place in this facility. After all the searching, the offices, the warehouse, there was just nothing. Reporter it didnt help that Thermo Fishers shelves seemed perfectly stocked for a this is a company that has tyvek suits, which are what you would see in some murder investigations the detectives wearing, so they dont contaminate scenes. Theres actually industrial strength bleach there. Reporter thats stronger than any you could buy in a store. Thats right. Rubber gloves everywhere, plastic bags. I mean, if you needed to commit a murder, this place has it. Reporter the only sign of anything amiss in the entire warehouse . Michelle, as head of payroll, had a locked office, and it looked as though someone had tried to break into it. You could tell that because . There were pry marks on her office door. Reporter what was in that office that anybody would want . Thats the mystery. You know, we talked about money, but there was very little money reporter the following morning, Thermo Fisher employees came back on the job, shellshocked about the death of their coworker and jittery about possibly working alongside at a command Center Meeting at the sheriffs office, detectives put their Heads Together and drew up a list of potential suspects, based on the last people to see Michelle Mockbee alive, or the first to find her dead. Ed yuska, the supervisor. He was one of the two that found the body. Reporter dave dooley, the janitor. Dave dooley was with ed yuska when the body was found. Reporter doug tungate, a temp employee, and joe siegert, a warehouse worker. Doug tungate and joe siegert were the two that saw michelle when she came in. Reporter and dan mockbee. Of course, dan mockbee because hes the husband. Reporter a short list of potential suspects for prosecutor linda tally smith. Ive referred to this case as almost being like the game of clue because you have a very small group and its a matter of accounting backwards and excluding people. Faced investigators. In which room . With what weapon . And finally, who . Coming up the questions begin. Where was michelles husband dan the morning of the murder . I was sleeping. What a great alibi, right . Why did you sleep on the reporter Michelle Mockbees siblings remember her as the big sister who literally couldnt lose. She won every contest there was for like a twoyear run. Yeah. You name it. She won tvs. Flat screen tvs. Tickets to everything, gift cards, you know, everything. Super bowl parties. Lucky. She loved it. It made her so happy. And it made her even more happy to share her winnings with other people. Reporter but now it was michelles family that had lost so much. We were completely dumbfounded as to why anyone would want to hurt her. Reporter as investigators worked through their list of five initial suspects, one by one, like the prosecutors game of clue, they started at the most obvious square one, the victims husband. First couple of days police werent letting you out of their sight. No. Reporter were you worried youd be put in jail . Absolutely. You know youre as innocent as can be, but theres always a possibility of something. Reporter dan was a suspect almost from the getgo. Were you guys aware of that . I was aware of it. Because the detective that came to my house asked me if there marriage. To which i replied no, not at all. I not for one Second Thought that dan would be responsible ever. And i dont think any of us did. Never. Reporter but detectives werent so sure. They peppered dan with questions. Including the big one. When police asked you where you were at the time your wife was killed i was doing what most sensible people are doing at 6 00 in the morning if they dont have to get up and go to work. I was sleeping. What a great alibi, right . Im home in bed. Its not a very good alibi, but its the only one i had. Reporter but exactly where he was sleeping that night raised a red flag for detective stahl. Dan volunteered he was downstairs on the couch. Was that a sign of trouble in the marriage . I said, well, whyd you sleep on the couch and she sleep in the bed . And he said, well, you know, typically the girls sleep with her and i get off of my shift late. By the time i get home, shes already in bed for the next so he had just made a habit to sleep in on the couch. It made us want to take a closer look at dan. Reporter detectives werent the only ones interested in the husband. A cadaver dog named little joe had been called in to search outside the warehouse. The dog searched two cars with no success, but then he went up to a third vehicle, a silver minivan. The dog did have some interest in the back of that vehicle. Reporter detectives knew what the dog handler didnt, that the silver minivan belonged to dan mockbee. After the dogs up in the vehicle searching, he was finding nothing. There was no findings of human remains or blood. Reporter a disappointing dead end. Investigators have been in and out of this place all day long. Reporter but the cadaver dog was then sent over to the mockbee house to join a search in progress. One dan had consented to. Whatever we asked of dan, he was willing to do. That he wasnt guilty or that he was supremely confident he wasnt going to get caught . Thats right. Reporter while dan was feeling the heat, detectives were pulling numbers off michelles cell phone and tracking down truckers who had delivered to Thermo Fisher. And of course, stahl and mcvay were taking a hard look at the other four names on their initial suspect list. Two men who were the last known to see Michelle Mockbee alive. One, a warehouse worker named joe siegert, had seemed unusually unemotional about michelles death when he was first questioned. He was one of the ones that made it to the top of the list. Joe presents himself as a loner. Kind of a dry, dark sense of humor and personality. Reporter the other guy at the time clock that morning was doug tungate. Doug was a temporary employee. A newcomer to Thermo Fisher and an outsider. We started looking into his past. Saw that he had a couple felonies and some alcohol issues. Good guy to look at. Reporter then there was david dooley, the janitor. He and his wife janet had cleaned at Thermo Fisher for years. David was one of the two to find michelles body. Detective mcvay interviewed him the day of the homicide, and really nothing that put him to the forefront of anyones mind. Reporter and last, there was ed yuska. He was the supervisor who called 911 after finding michelle. The blood is right by her office door. It looks like she never got in her office. Reporter detective stahl found out that ed yuska had some health issues. The thought that ed could do all this to michelle, drag her down the hallway and get her to the mezzanine logically to us says eds not our guy because he physically probably couldnt have done that. Reporter which made detectives feel comfortable eliminating ed yuska from their suspect list. And so then there were four. One . The csi team had collected some dna from michelles body and belongings, but detectives knew it would be months before a forensic lab could report whether any suspect was a match. Meanwhile, investigators were starting to scan through a promising new piece of evidence, security video from the warehouses parking lot. Could the clue they needed be somewhere in those thousands of frames of footage . There it is. Coming up it was nerveracking. Another elimination round. This time the lie detector test. And police soon detected something was up. He stops himself at the door and says, no, no, no, im not doing this. Even if she gets a stain shell wear it for a week straight. So i use tide to get out those week old stains and downy to get it fresh and soft. And since im the one who has to do the laundry, i do i let her play sheriff. I got 20 minutes to life. You are free to go. Tide and downy. Great on their own even better together. Check this out, bro. Whats that, broheim . I switched to geico and got more. More savings on Car Insurance . Yeah brofessor, and more. Like renters insurance. More ways to save. Nice, brotato chip. Thats not all, brotein shake. Geico has motorcycle and rv insurance, too. Oh, thats a lot more. Oh yeah, im all about more, teddy brosevelt. Oh my gosh, stephanie were, like, so goth. Sfx knocks on door. Honey . Im dying my hair, mom. Hair dye . Honey. Its just purple. Teenage daughter . Get scrubbing bubbles. Kill 99. 9 of germs and destroy grime. With scrubbing bubbles for 100 problem solved. Everyone loves the way dark clothes make them feel. And no one wants that feeling to fade. Its free of harsh ingredients, keeping dark clothes looking like new for 30 washes so your love for dark clothes will never fade. Mother of two michelle mock bees family funeral brought her family some comfort. In your mind, youre like, she touched this many peoples lives. Soon red ribbons popped up in honor of michelle. But still couldnt answer the familys questions. I feel like were kind of in limbo. We didnt know what this was all about. We didnt know if it was somebody after our family, why they would be, we dont know. Early on, the investigation had yielded frustratingly few clues on the four remaining lead suspects, but the detectives commander kept up hope. I knew once we can get that just one little bit of lead on this investigation it would hov and his team of detectives were hunting for the next lead, by scanning through hours of security footage of the thermofisher parking lot. We had several eyes on this video. And stahl decided to turn up the heat on the four, starting with the husband, dan. We asked him, would you take a polygraph for us . You agreed to take the polygraph. Yes, sir. Thats a scary thing. Because if it goes wrong, all of a sudden theres a case against you. Right. It was nervewracking. I mean, i took a deep breath like this an the guys like hold on, hold on. You cant do that. You know, its registering on the sensors. And youre like what if i took a deep breath at the wrong time . Reporter but dan told detectives he was eager to be put under the microscope. Please. Do all this stuff so you can figure out that i have nothing to do with this so you can go find whoever did this. Reporter dan mockbee passed the polygraph. Didnt do it. And so then there were three. And around that time, major huff and his team spotted something they thought was unusual on the security footage. There it is. Reporter a vehicle in the parking lot, not entering, but leaving, around the back of the building. A bright red, fire engine red, chevy pickup truck, twodoor. Thats