If true ... If you point a rifle at police and refuse commands to drop the weapon then you can expect a police response to that failure. So far as I can tell, the rest of the story's details don't much alter that.
Being a bit more cognizant of the present would have suited him better, with inbound police taking stock of the situation. That's a good reminder to us all, if ever caught in a defensive situation with inbound cavalry getting a first glimpse of a crime scene where we're still standing. Caution."He was just fascinated with the past... He liked to dress up and have fun."