I say keep him locked up for life as a dangerous offender.
And I say strap him with remotely detonated explosives and paradrop him in the middle of some ISIS training camp. Let them see what a suicide bombing attack feels like.
I have repeatedly been in Serbia and Croatia. The people there are nice, but beautiful women are very few and therefore, the role of prostitutes, they are not suitable.
Not sure you've seen too many prostitutes around Europe. Most of them aren't exactly Victoria's Secret material. From what I've seen US prostitutes aren't much prettier either.