Long story short: 22 years ago a frat boy rapes a 17 yr old girl. Later he's going through the AA 12 step program and contacted the victim to apologize and try to make amends. The victim eventually turns the apology letter and subsequent email correspondence over to the police as evidence of the rape. The guy is arrested, pleads guilty, and agrees to a 2 year prison term.
Here's where it gets dicey from a philosophical standpoint: The guy deserves punishment for his crime. However, it appears he may be a better person now than he was when he committed the crime. People sometimes come out of prison worse than they were when they went in. I think this is particularly true when the person isn't completely bad when they go in (there is much anecdotal evidence to confirm this).
I can't say for sure that this guy really is reformed at this point. I can't say for sure that if he is, he will come out of prison a bad guy again. But what worries me is that it is a distinct possibility that both of those things are true.