Somewhere in the back of my mind is an article I read about the worst murderer in history. He was a man sent by the Russians (I think) to 'remove' anticommunist threats in Poland. He set a target of killing 300 Polish soldiers a night, but reduced this to 250 after a while as the murders took longer to take the soldiers from their cell, kill them and clean the area than he allowed for. In this way he killed thousands of soldiers.

