Don't forget NAS Oceana a little while back, love triangle, shooter went to work where his almost gf also worked, shot her. Stupid admiral says we have to investigate how he got the weapon on base. Well, lets see. From 1994 to 2016 my car was searched once while entering Oceana, Norfolk, Langley, Little Creek, and Dam Neck. Once! One time I even told them I had a giant gun on the seat and needed to find the armory. Gate didn't know, I didn't know, they let me drive around Dam Neck for a while and then I finally got irritated, drove back to my room at Oceana and took my very large rifle case to the room with me. Nobody even noticed. It's a gun free zone, when people are going to go wacko it's a good spot. Nobody remembers Fort Hood.
I will say it is a pretty low casualty rate in these, almost like as soon as another gun gets there things go south for the shooter. Hmmm.