Originally Posted by willravel

How about this:
The people in the OP were all politically or ideologically motivated to the point of doing truely inhuman things. They are people who have, for one reason or another, lost all perspective. Do you know where it stems from? Entitlement. Every evil that man does in thsi world comes from a little voice in your head that says, "You have the right to do this", for whatever reason. The people in the OP were entitled to do what they did, and that seems a good place to start.