Prison made him do it?

Ann Althouse posts on the Steven Avery/Project Innocence topic, and an odious thought arises in the comments, namely the possibility that 18 years of false incarceration turned Avery into a killer of young women. One look at Avery's record prior to his rape conviction proves that defense absurd. The man had a record that was a pretty good indicator that he might be capable of commiting a crime such as this. Being innocent of a specific charge does make one an innocent person. Avery was a bad person before his 18 years in the can, and he's a bad person now.