How do you know that Paddock flipped out?
In part, I was trying to make a joke, but when I said "flipped out" I meant departed from normal behavior patterns.
Obviously, there was planning and premeditation. He didn't just have a fit of anger or rage or temporary insanity. He didn't flip out in that way.
But somehow something in his head got switched from normal to abnormal. I'm not sure he was clinically insane, but he was definitely moving in a different world from most people.