Dave, there's an old vigilants trick called a "stump job' that should fit the bill nicely.
You take a large fence staple (a big nail that can be bent over will do) and you nail his scrotun and penis to a large pine stump Preferably one with a LOT of resin in it.
You then give him a piece of broken glass, set the stump on fire, and walk away.
He chooses what to do.
This was used especially with child molesters and rapists.

troll