My son has been in jail / prison more than once. The first time he was in jail his attitude was rebellious, he would be quick to say he didn't deserve to be there, what he did wasn't that bad, how horrible the staff treated all the inmates, and so on.
The last couple of times he puts a more "positive" spin on it. How he knows he needs to change, how he's going to do better, how he knows he's made mistakes, he knows he needs to not drink, and so on... however, he never will admit to his crime, the one that got him arrested. This last time it was for assault with a knife. He claims he's innocent and will offer no details as to why.
I would like to think on some level he really does see that he needs to change his life pattern but I fear that when he is released he will slip back into his old habits. I also believe, with my son anyway, that his "remorse" is more of a manipulation tactic. You know, if "mom" thinks I'm really sorry she will send money and when I get out she will send money.
My son told me in letter "when I get out I'll be homeless" well duh!!! he was homeless when he got arrested.
Again, I think he's trying to play on my emotions. NEWS FLASH!!! I don't play that game anymore.