I read the transcripts, listened to the tapes and interviews..He's GUILTY
There is no confession. He never said he killed his wife to anyone. He is guilty of being a crappy husband and a sad excuse for a man. His conversations with Amber do not, anywhere, prove him guilty of killing his wife.
If so it would've been the 'silver bullet' the prosecution wanted, he'd have plead out in a deal and the trial would never have happened.
On the upside, you can always use your comments here as justification for avoiding jury duty.