A woman in my city did about the same thing. She basically committed suicide by cop. It was horrible. On both sides. How can you kill someone holding an airsoft pistol (bb gun really). In any case, no I don't think she was thinking clearly but even in my own most darkened days, which were pretty nasty, I knew what I was doing. I think we rationalize things and justify actions so we can not care about consequences. How we get to that place though is a loooong dark road IMO.