[0mbre]

Well you can wonder why did these people act irrationaly? Could these behaviour have been detected? Could they have been helped out of this narrowed point of view of thinking that killing innocent is the right thing to do ? I don't think anyone today hasn't in mind those questions.

[tonyedgecombe]

But all the while you think they acted irrationally I don't think you will really be able to understand why they did it.