I read in the paper that in Maryland they have a law that for every handgun sold they keep a sample bullet case - but they don't bother to do that for rifles, so that's not much help this time around.

Sounds to me like it's someone who's decided that shoot-em-up video games aren't enough, and has moved on to doing it for real. I can't help wondering how safe it is having millions of people whose idea of fun is playing around for hours on end with fantasies of going round casually killing strangers. All with the right to buy guns with telescopic sights.

And now they are all watching this on the TV, and some of them are maybe getting ready to flip, and there'll be the copycat killings.