This is something that always intrigued me. How many serial killers were there during WWII and got away with it because they joined the various death squads? Where they could kill authorized by the Nazi regime, and indeed the regimes of the other axis nations.
And what differentiated those who were captured and brought to justice to those who killed indiscriminately in the name of the Nazi party? The answer would probably the Nazi ideology,although idiocy would probably be a more accurate description.
One of the WW2 serial killer was Paul Ogorzow.