Lots of people are "crazy" and never shoot up anything. You, for example.
Okay, you see, there's a difference between "Crazy" and "saying stuff you don't like".
I'm sorry I have to explain this to you.
But let's look at that.
For the job I started last year, the company did-
1) A complete background check.
2) A credit check
3) Checked where I went to school
4) Asked several co-workers about me (even though they had two of my former co-workers already working for them, which is how I heard about the job.)
In short, before they let me issue a single purchase order on their behalf, they thoroughly checked me out.
Seems to me we should probably do the same before we let people have guns.
If they had done a background check on James "Joker" Holmes, they'd have found his university was in the process of expelling him.
Had they done a background check on Dylan Roof, they'd have found he had been arrested for drugs and was under a restraining order for stalking a girl.
Had they done a background check on
Seung-Hui Cho (The Virginia Tech Shooter) they'd have found a history of anti-social, violent behavior dating back to junior high school.