One developed PTSD from it and has had major issues since he was released 15 years ago. The other one hasn't quite came back mentally either, will not talk about it and is so much worse off now than ever. After he was released, but before his court date where he knew he wasn't going to have to go back, he was contemplating suicide.
They all said they would rather die than ever go back for any significant time. I'm not sure what significant means in that respect, but dying seems to be the general theme they share now.
After working at a jail for a bit, I'm not sure I blame them at all. I like to think I'm mentally strong, but I don't know how long I could do it. I am sure I would have the same mentality they do now after spending time in jail / prison.