Poisoning. Someone else was there with him that morning. This is now a Murder Investigation. 100 . The wife . She was on our radar. I had nothing to do. Her lover . I knew he was innocent. This small town is full of secrets. His murder, one of them. Youre hearing about a love triangle and poisoning, death. Oh, my god, this cant be happening. Reporter a new love makes the world seem a little brighter. He had a very smooth, i wanna say, almost sexy way about him. Reporter makes the heart beat a little faster. Reporter was it passionate . Yeah. Reporter but when that love is forbidden. I was, like, what . How can that be . How could i not have known . Reporter a family would wonder if other secrets might be hidden. Why would you do this . How could you be so irresponsible . The whole thing was an atrocity. It wasnt a tragedy. It was an atrocity. Reporter it all began just a couple of hours north of new york city. A photographers dream called the Hudson Valley. Rolling hills. A majestic river. And quaint small towns. For linda kolman, it was the Perfect Place to raise a family. I grew up in saugerties. Small schools, you know. Just involved in sports and things like that. Reporter everyone seems friendly and it just seems kind of yeah, theyre smallhome towns, you know . Reporter its where linda lived with her husband tom and their family. A loving home where they celebrated birthdays and holidays. Thanksgiving 2011 was a busy time, visiting relatives, overeating, and watching football. He just loved the game of football. And he was a giants fan from a kid. Reporter and you took him to his first giants game. I did. I have pictures of him, like, you know, standin down by the field like, look at me. Reporter kid in a candy store . Yeah, yeah. It was great. Reporter both linda and tom had been married before, but this felt like the real deal. Reporter what was it about toms personality that made him so lovable and made you love him . He had a shyness about him that was sweet. He had like a like a kinda shy, flirty kinda way. It was just adorable. Reporter when it came time to tie the knot they rolled the dice and eloped. Reporter Little White Chapel . A chapel in ballys. Yup. It was beautiful. Flowers, music. Really beautiful. Well, it was unusual, you know, walking through a casino and someones got a wedding gown on. Reporter the only guests were lindas parents and toms mom and dad, marie and tom senior. Reporter did you feel touched that they had asked you to join in this special occasion . Absolutely. Reporter did they seem like a good match . I think they fit, yeah. Reporter both tom and linda had kids from their previous marriages. But a few years later, they welcomed a child of their own, ryan. He would say all along through the pregnancy, i dont care if the girl or boy, ill love it either way. You know, but i kinda knew deep down he wanted a boy. And so when he was delivered and he saw it was a boy, he cried. He was so happy. Really happy. Reporter did you immediately see a relationship made in giants heaven after that . Oh absolutely. Reporter they were a blended family his, mine and ours as they liked to call it. Linda had a daughter who lived with her and tom. While, toms two kids from his first marriage lived in colorado, brad and daughter jillian. I grew up knowing that my stepsiblings were my siblings. It never felt not normal, you know . It felt like at dads house, that was my house. Reporter and despite the distance, tom was very close to his oldest kids. I was a daddys girl, definitely, no doubt about that he always made sure that whenever brad and i were in town that we would have fun. Like we we wouldnt just, you know, be sitting around. We always had fun plans. Reporter jillian and her dad talked on the phone all the time. Thanksgiving weekend 2011 was no exception. And i remember we hung up and we blew a kiss over the phone like we used to when i was ten and we hadnt in years and i thought that was cute. Reporter and when the weekend of family and football was over, it was monday, november 28th. And lucky for tom, the new york giants were on tv. He stayed up and watched the football game, a giants football game. I went to bed. Reporter the next morning, as usual, he was up and out of the house before linda and the kids were even awake. He normally got up to go to the gym, around 5 30 and gimme a kiss on the forehead. Reporter after working out, like clockwork, he always went straight to his job as a physical therapy supervisor. He and linda usually texted soon after. But when linda sent him a message that morning i didnt get a response. And normally, toms very good at responding. I was gettin a little concerned. But, you know, maybe hes in a meeting, maybe hes, you know, whatever, hes tied up. Reporter she wasnt really worried until her phone rang. It was a friend of toms named gil. I got a phone call from gil saying have you heard from tom . And i said, no. Have you heard from tom . And he said, no, but he didnt show up at work. Reporter whats going through your mind . Is there concern or just, oh, maybe hes at the gym . Tom would never miss a morning of work. Reporter linda jumped in her car to to retrace her husbands steps, hoping to find him. She never imagined that search would lead where it did. When we come back, lindas heartbreaking discovery. I saw his car. I was like oh, my god. He had gone to gym. In fact, he was still there. Im like wake up. What are you doing . Theyre looking for you at work. I was like oh, my god, this cant be happening now. Nutrition can seem overwhelmin. Even if you try to eat well, you might fall short in key nutrients. Get more by adding one a day. Its the 1 multivitamin uniquely designed for men and women. One serving, once a day. One a day. And done. Reporter tom kolman wasnt the kind of guy who didnt return calls from his wife and he always showed up for work. His family says he loved his job as a physical therapist. He was always dedicated to, you know, his work. And he loved it so much, he went to get his doctorate in physical therapy. Was he the type of person who liked helping people . He did. Elderly people just loved him. He was such a sweetheart. Reporter so that morning when tom went mia, linda was frantic as she jumped in her car to look for him. He usually goes to the gym and then to work. So i went to the gym. And i pulled in and at first i didnt see his car. But then as i pulled further through, i saw his car. I just pulled up alongside and i looked over. And i was, like, oh my god. He was layin down. And i thought, he fell asleep. Like, he looks like hes sleepin. And so i jumped outta the car and i opened the door and i jumped in. And i was, like, wake up. What are you doing . Theyre lookin for you at work reporter but tom wouldnt wake up. Linda called 911. Ulster 911, whats the address of your emergency . Im in. Im in the parking lot by Planet Fitness in kingston. I was looking for my husband and found him in his car. And i dont know if hes breathing. What did you think had happened to him . At that point, maybe he had a migraine and took some migraine medicine and laid down. But hes not waking up while youre waiting for the ambulance, no matter what youre doing. His hands were really, really cold. And then i realized that his nails were blue. Youve got to send somebody. Maam. Are you able to check and see if his chest is going up and down . I dont think it is. Reporter paramedic, tim mitzel, was one of the First Responders. I believe we were here within about three minutes of the call. What did you see, as soon as you arrived here in the parking lot . Mr. Kolmans car was parked here. And mrs. Kolmans car was parked here. Mrs. Kolman was on the side. She was very distraught. Did you attempt to resuscitate him we did not. After my ex quick examination, i could tell that there was nothing that nothing that we could do. He had been deceased for a while. The paramedics, they just stood there. And i was, like, what are you doin . Like, help him. Just get in the car and help him. Like, and they just stood there. They were, like, no. And i was i just was, like, shocked, like, can you just try, you know the one just said, no, he hes gone. And he did, he just felt so cold. Did you just feel like this is so unfair . Yeah, i just i just was, like, oh my god, this cant be happenin now. You cant leave us now. Reporter shortly after toms friend, gil, called linda, and rushed to the scene. Thats him in this dashcam video off to the right, collapsing in grief as he learns the news. Meanwhile, First Responders and arriving officers processed the scene. Anything unusual about his body . Or did he just look peaceful . His trousers were open h just a little bit. His collar was undone. His shirt was kinda pulled out. And he was reclined back in his car. And i felt like he it looked like he took a nap and didnt wake up. There was a little presumption that it may have been a heart attack or, you know, cardiac event, or something had happened. He was a large man. Reporter but since toms death was what police call an unattended death, there had to be an investigation. Detective mike thomas and lieutenant kyle berardi both worked the case for the Ulster Police department. They took note, of how linda, the wife, was reacting at the scene. Her demeanor, was it exactly what you would expect from a wife making a discovery like this . 100 . 100 . There was nothing out of the ordinary with her reaction, her words. It was more hysteria. Reporter Police Escorted linda down to the station to ask her questions about toms health. She had mentioned to us that he had hypertension. He had sleep apnea, which if youre not familiar with sleep apnea, unfortunately, they ultimately stop breathing at certain times during the night. That sounds dangerous. Absolutely. He was diagnosed by his doctor as having a severe case of sleep apnea. Did you, kind of, think that this was g going to be an open and shut case once you got the autopsy results . Yeah. Absolutely. And and that unfortunately was not not the outcome the next day. Reporter instead, the results would turn this tragedy into a tangled mystery. Coming up 40yearold men dont drop dead like that. A blockbuster new clue. What did that video show . We were able to observe a white suv arrive in the parking lot. Someone else was there with him that morning. When dateline continues. You could take the treatment of your Ulcerative Colitis in a different direction. Talk to your doctor about xeljanz, a pill, not an injection or infusion, for adults with moderate to severe Ulcerative Colitis. 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Repeatedly. Today, lifechanging technology from abbott makes it possible to track glucose levels. Without drawing a drop of blood, again and again. The most personal technology, is technology with the power to change your life. Life. To the fullest. Reporter just after a busy thanksgiving weekend, linda kolman found herself surrounded by family and friends again. This time it was not to celebrate, but to grieve. Tom, her husband of ten years, was dead. Think she was just in such a state of shock that its almost like she wasnt there. Reporter lindas sister, debra, raced to saugerties. My family were there my parents. And there were some friends. I had gathered some of the close friends. Reporter there were so many people to tell toms siblings broke the news to his parents. When i came home at 3 00, all my children were at my house. They were told, which was that it looked like a cardiac event and he didnt survive it. But we just couldnt believe it. Why didnt you believe it . Well, he was always in good shape, exercised and everything. All right, hes a little overweight. But still, he tried to, you know, he was he was healthy. Reporter his daughter jillian and son brad, found out from their mom, michele toms exwife. She just looked at both of us and no beating around the bush, just said, your dad is dead. And i just everything was a blur. I mean, words like, heart attack, and, aneurism, kept flying at me and none of it was registering. It was just utter heartbreak. The three of us stood together hugging and then collapsed onto the floor. But it did seem to be a really long time that we just didnt let go of each other. Reporter they flew to new york and joined the growing crowd at tom and lindas house. Linda was a wreck. She needed help standing up sometimes. She was just riddled with grief. You have time to even grieve reporter as the kolmans made funeral arrangements, investigators met with the medical examiner to nail down the cause of toms death. What they heard changed everything. It was undetermined pending toxicology results. Reporter the medical examiner explained there was no evidence of a heart attack, aneurysm, or any Health Related event. You got an undetermined cause of death on a 40yearold male, which 40yearold men dont just dont drop dead like that. Are you still thinking that this could be medical or are you starting to think, we could have a homicide on our hands . You can think both at that point in time because weve had had to wait for toxicology reports to come back to to come up with a cause of death. But in the meantime, were were thinking i would say thinking the worst. Until we can disprove that its not a homicide, weve got to treat it as such. Reporter crime scene techs worked on toms car and took swabs for clues. While detectives set out to learn more about his movements on the day he died. Linda told police the last time she saw tom was the night before, watching football. She assumed he left for the gym the following morning around 5 30, so investigators pulled security video of the parking lot to see what that could tell them. It was dark and grainy but revealed a lot. In the video itself we were able to observe a white suv arrive in the parking lot of Planet Fitness and that was about 4 30 in the morning. Ten minutes later we actually see Thomas Kolmans vehicle pull into the parking lot and park right next to this white suv. Thats when we knew that obviously someone else was there with him that morning. The plot really thickened, im sure, after seeing that video. Yes. So this is the Planet Fitness right here . This is Planet Fitness to your right. This is where where tom worked out every morning. Ill pull into toms spot. Reporter bill weishaupt is a retired fbi agent and the chief investigator for the Ulster CountyDistrict Attorney. He showed us in the light of day whats hard to see in that grainy video. This is exactly where tom was parked, right here. Which is as you can see, its a great distance away from the Planet Fitness where he normally worked out. And so this would not be a normal parking spot to pull into at that hour in the morning to work out in that gym. And the mystery suv pulled up where . Mystery suv pulled up right here. So they were both facing which is this is north. Could you identify a person, a make, a model of the car . What details were you getting . No, it was pitch black. These lights were not providing any illumination at all. The only thing we could observe was that the two vehicles were parked side by side for about 3035 minutes. Reporter the mystery suv left around 5 30am. But toms car never moved. What does that tell you . There had to be contact between the two to meet at this point, at that hour. So we knew now that someone had met with him prior to his death. And we now have to figure out who that is. Reporter easier said than done, of course. We just pulled up here. And lo and behold, there was a white suv here beside us. There is a white suv there. There is a white suv there. Once you think about it, theres a lot of white suvs. Theyre everywhere. Theyre everywhere. Reporter but thanks to the video, investigators now thought they had an important lead to help narrow their search. Whoever tom was interacting with in this white suv, he was expecting him. And he he knew him. Reporter time for investigators to start looking at toms inner circle. Picking apart his simple suburban life. Linda kolman, i would imagine, would be someone that you would wanna look closely at. No question. If theres a death that is not a natural death, you look at the closest people first, usually the spouse. Coming up he did want to talk to me. Soon they discover another reason to take a look at linda kolman. We had a relationship. Sexual relationship . Hes having an affair with linda koleman. It caught us off guard. 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