To be honest, I wouldn't have a problem turning them into gibbering idiots! When they violated their victims they sacrificed all rights to tender loving care. Remember, I'm talking about the really evil, cruel, murderous criminals who have no regard for the victims they attack or for the consequences of their actions. The kind of person who would rob a convenience store for a few dollars, then kill the clerk just for kicks. They have no redeeming social value in my eyes and are deserving of the most cruel punishments which mankind can devise.