How about we take guys like this and offer them a "new life"?
In Russia, Chechnya, or just somewhere at least one ocean away from here.
At least in those countries, he won't be so "bad" after he doesn't eat for a few weeks, and if he pulls the crap he does here, they'll kill him.
Heck, we'll SAVE MONEY, by PAYING the other country to take him. $10,000 per "new colonist" would sound good to me, and it would be cheaper than new prisons.
Who knows, if his interpersonal skills improve, he could be running the mafia over there. (But, I doubt it.)
Glen