::::::::You're incorrect; you are thinking like a sane person because you haven't been trained to do otherwise. In my opinion, the remote possibility of armed resistance could have made a difference here. Not by way of the fear of death, because the shooter was perfectly willing to take his own life, but via the possibility that in performing his final act, the shooter himself could be trounced by those he thought were so weak and unworthy of life. In this person's mind, nothing could be any more humiliating - shame being a greater motivator than life or death in this case.