This sort of behavior, deciding that sex offenders of whatever sort should be ostracised from society completely does farm more harm than good.
These sex offenders in many cases did absolutely disgusting and awful things, yes. However if you don't allow them places to live and work they are far far far more likely to re-offend. Without healthy outlets for a normal life they can only stew in their own minds and will spend most of that time angry and really fucking horned up.
I've in my time seen what I'd call "ghettos" of men who have committed these kinds of crimes and others. Living closely together in hotels or low cost housing cause it's all they can afford and the only place they can live.
Surrounded by other angry horny recovering sex offenders and other ex-felons. Yeah that just magnifies what's already churning in their heads.
Let the guy work at KFC, let him have a place to live and watch the fucker. Keep a close eye on him as he struggles to fit into the real world. The further you push him away the harder it is to see what he's up to and the more likely it is that it's gonna be something really bad.