Great documentary. The preponderance of the evidence, the totality of the circumstances lead me to believe that he killed his wife. There are other small nuisances that I saw being displayed by Michael Peterson that a reasonable person who lost their spouse in the horrific manner to which he did do not say or do. He was always very nonchalant about talking about his wife and what happened that night. He told his brother and son that "we just need to get over it and move on." Stuff like that. Forget Deaver's botched testimony, he had no clue, in my opinion, what he was talking about from the beginning. And when he was crossed examined by the defense, you could see it in his eyes that he was searching for something, anything to say. I felt through his mannerisms on the stand, that he knew his testimony was false and inaccurate. All in all, great documentary. Yes I believe Michael Peterson is guilty and should spend the rest of his life in prison. I believe his motive for doing this is because she found out about an encounter he had with another man and possibly said she wanted a divorce and he knew he was going to be paying alot of money to her.