Disgusting. Aside from the obvious, I'm sure that many of these kids who resort to gun violence aren't advertising that they are on the edge. I'm sure many of them go day after day, silently holding their shit together in the jungle of high school, and then, it's one thing too many. Are they the troublesome students? Not the abnormally muscled steroid gym monkeys or athletes? Not the super entitled rich kids?
Losing an intelligent teacher, and a female role model is a hit to the system, but if that's the way things are being structured, I would leave as well.