I bet they wished more that he didn't have a gun!
clearly, but that is not a realistic way of thinking.
Evil will always exist, no matter how many laws you pass.
People will always find a way to kill people, no matter how many tools you ban.
Bad things will continue to happen to good people, no matter how much you try to impliment your lib utopian fantasy world of world peace.
These tragic events will always occur in the world, no matter what. It is part of the human condition.
Is it not therefore much more reasonable, and much more practical, to be prepared/armed for when this guy bursts into the room, rather than try to pretend that if we just pass enough laws, and ban enough guns, then nothing bad will ever happen to anyone??