>> diners. >> reporter: there was very little evidence against karl karlsen. he detectives desperately needed cindy to get him to repeat what she claimed was his confession to levi's murder. obviously karl was suspicious. >> part of me feels like i'm walking into a booby-trap. >> yeah, i can imagine you would feel that way. i had to convince him that, you know, it wasn't a trap. i offered for him to check my purse. >> reporter: then she got him back on the subject of that day in 2008. >> i asked you if you pushed the truck and you said yes. >> i didn't push the truck, i said. no, i said i had nothing to do with it. but i said i took advantage of the situation once it happened. and that is exactly what i said to you. >> karl, you told me that you didn't set it up that way, but when you were in there you saw the opportunity. >> no, after it had happened. then i panicked and saw the opportunity. >> reporter: the detective was struck by that exchange. how could a father call his son's death an opportunity? >> at that moment i felt understood him to a diaegree. he d

it was a brand new mustang purchased by karl karlsen. insurance on it and it burned up in his driveway. >> according to the report we heard, there was nothing in the trunk, nothing in the glove box. the car just burned up. so the insurance took care of the payment and he got out from under it. >> the barn fire is another one of those coincidental tragedies. >> one evening in 2002, i was asleep. and karl sat up upright in bed and looked out the window, and said, "oh, my gosh. the barn's on fire." i knew there were horses in there. there was our prize belgian mare and two babies. >> it was devastating to see the barn burning down, which is part of our family's history. and then also to see the loss of these horses that were conveniently just put in the barn. >> somewhere around $115,000 karl's paid out on this barn and these horses. >> here we go one more time. a tragedy and a payout. >> i call it blood money. he got an insurance policy from my daughter. he got another insurance policy when he had a barn burn down with expensive horses in