If he found the greatest pleasure in that then he was clearly deranged
He did not seem to kill for pleasure rather because you tried to get in his way or you tried to kill him.
I kind of liked him because he slapped the mohammedans around so hard they cried uncle.
If it had not been for him the mohammedans would have had a much larger power base and been free to turn their attention to the West.
Civilization probably would not have survived.