"I didn't." Jack answered, "Not until I met my friends. I was a miserable fuck before I met them. I lied, stole, fuckin' murdered, and the worst part was that I didn't give a fuck. Then I met them and all that changed. I learned to care about others, I learned that people can change, I am living proof of that. Just the fact that I came back and traded my life for Tobi's proves that. But I don't believe EVERYONE can change. You for example, you can't change. If you tried your followers would find you inept and would likely kill you. But to answer your question, yes, I believe if the right person tried hard enough to overcome the sins of their past then they can change. Why do you ask?"