The reality is that the problem still persists though, unless he's 'seen the light' since our brief encounter. Hopefully my advice rubbed off on him and he stopped then, before he spent the rest of his life in prison. Forgiveness achieves nothing unless the offending party is miraculously awestruck by one's grace. "Forgive them Father, for they know not what they do?"
I say teach them by making them lose something of their own. Knowing that you're 'better than them' is also of little comfort, knowing damned well that they're incapable of listening to reason and will likely become worse with age as they learn new tricks, especially in prison. That reminds me now that I mention it; his support officer or whatever said that they'd rather not send him to a young offender's institution because he'd only come out worse than he went in like all the others, once he'd spent time with the more experienced criminals. I'd lock them all in solitary until they reflected on their behaviour or found God or something. They need to be broken down and rebuilt, like an engine that's lost its bearings.