Could it be that certain political or religious leaders may have created an atmosphere that encouraged them to act out in their fantasies? Certainly. But it would be surprising to find any consistency or logic in the beliefs of someone who just whacked a group of people.
@John_Scotus i like this thread
Since some people appear to be a little dense, let's be clear: The idea that a spree killer would have views and an outlook on life identical to a relatively normal person in the cultural environment that surrounds them is absurd. There is something wrong with their heads.