Yes, the guy owned the guns legally.
He went only for teachers. He went from room to room looking for teachers. Two pupils where killed when he shot through a closed door behind which he presumed teachers hiding.
And by the way (remembering another thread about guns), he wasn't stopped by the armed police, he was stopped by an unarmed teacher who did the completely unexpected and talked to him and called him by his name.

I wish you would have let the opportunity to quarrel once more about US-American gun laws pass by. But I knew you wouldn't resist the temptation to respond to the troll.

To each country her own craze: In Germany, a majority seems to think that an unalienable basic human right is violated if there is a speed limit (and control) on our motorways. 'Free speed' for 'free citizens' is the war cry of them. And yes, 'cars don't kill people, people kill people.' And 'only the good ones would keep a speed limit, the criminals never would' and 'you even can be killed by a bicycle'. And there are examples that violating a speed limit may even save human lifes (speeding an injured to a hospital).

How funny, that people from other countries don't seem to understand us. Can't they grasp that our very freedom is threatened by those who want to control our speed on the motorways? Since there are always those who will speed faster than allowed the following sentence has shown to be correct beyond any doubt:

You can't control speed. See?

Wolfgang