The therapist could have reported this guy and he could have been prevented from buying weapons. Every state has laws to where a person can be committed involuntary on an emergency petition basis
didn't she go to the cops prior to his shooting spree
btw - what you've said above is exactly what I think we should do for every gun buyer and it should be re-done every couple of years for existing gun owners
I think that would go a long way to keep guns out of the hands of nutbags (though of course it would completely eliminate the problem)