Wasn Ta Trap News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Charged with second degree murder. not long after, he got a lawyer. he headed to court and on the way used a walker, claiming old injuries were acting up. the cindy tapes, his lawyers argued, violated spousal privilege. but the defense deny the motion -- all these years, mike karlsen had misgivings about karl's behavior but after watching the interrogation video, his worst fear was cemented. that his own brother was a killer. and now, he had a new fear. but >> reporter: as the trial approached, did you think the evidence was overwhelming? and that it was pretty clear that karl was going to go ...

Wired up to do a second interview under controlled circumstances. >> now she was working with the police to take down her own husband. she got away with it once, but carl catched on the next time around? >> coming up. >> i had to convince him that, you know, it wasn't a trap. >> but could she? when dateline continues. eline continues. when you hear, cough cough sneeze sneeze. [ sneezing ] it's time for, plop plop fizz fizz. alka seltzer plus cold relief. dissolves quickly. instantly ready to start working. so you can bounce back fast with alka-seltzer plus.

>> well, 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. and then she got him back to the subject of that day in 2008. >> i asked you if you push the truck and you said yes. >> i didn't push the truck, i said. no, i had nothing to do with it. but i asked and said i took advantage of the situation once it happened. >> carl, you told me, that why you didn't set it up that way, but when you are in the, you saw the opportunity. >> no, after it happened, i panicked and saw the opportunity. >> reporter: the detective...

>> you had undercover officers in the restaurant. >> were they diners or waiters? >> diners. >> reporter: there was very little evidence against karl karlsen, so the detectives desperately needed cindy to get him to repeat what she said was his confession to levi's murder. karl seemed 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 t...

>> reporter: was that a confession? cindy felt like it was. she rushed the recording over to the police, but it was inaudible and, therefore, useless. still, detective clear believed her enough to ask her to do it again. >> at our request she agreed to be wired up to do a second interview under controlled circumstances. 1992 she was working with the police to take down her own husband. she got away with it once would karl catch on the next time around? coming up. >> he had to convince them it wasn't a trap. >> one intense interrogation leads to another. when "dateline" continues. when "datel...