To hear MSM tell it, the school shootings only started in the past couple decades. But, he did use explosives, irrc. Still, it was a mass killing at a school. Hideous. I'm not longer shocked by much of anything. The violence is so prevalent in American society now. We are all horrified when it happens, but not shocked any more. I hope we never become numb to it and instead try to do something to stop as much of it as we can, but I fear a lot of people are becoming numb/desensitized to it.