Actually, it seems that this attack was carefully planned and set up for months in advance. Somehow, they managed to secret weapons and ammunition in the school building over the summer, probably while renovations were going on.
I heard that the final firefight ran on for more than 10 hours. That takes an awful lot of ammunition.
Mark
I think you are right, Mark. And it CAN happen here too. I wonder if we will all be called upon to take a meaningful stand before our lifetimes end.