Wauzledop of Doomhammer (US-A) has figured out how to get away with murder. Just kill someone that no one would ever care about! For example, an ugly bald fisherman with giant freak hands. And instead of hitting him with your spells, which would surely be traced back to you, just shove him into the water. Sure, there's no real reason for Wauzledop to drown this random human, but pointless evil is what being a shadow priest is all about. That's why they get the skulls on their armor sets.