Criminals will always do what they do because they never think they'll get caught, regardless the penalty.
A hanging vs. beheading vs. electrocution, no big deal any of them. You need a long drawn out torture, those are all rather fast.
I think the catholic church has a type of torture for child molestors, it's called "church transfer". Pretty harsh, I know.
Give your life to God, he'll repay you with many little boys.
Bang!