OK, it seems as though it's a pretty terrible police response to an active shooter.
My concern though, and I didn't articulate it well to LK, is that this turns into a police lack of training/funding issue rather than a "how ITF do they let a kid get a machine gun?" issue. It's probably both, but I'm of the belief that this is much more the latter.
I've got kids in and around the age of these completely innocent victims, so maybe that affects my opinion of this.