Unfortunately there is no solution to “what should be done with people like this shooter”? The only answer is to put a bullet in him before he puts one in you,or,God forbid,an innocent child! This man is crazy. He shouldn’t have a gun. All well and good,yes,no guns for people like this. Now try and stop him from obtaining a weapon. You can’t. No amount of laws can stop him or someone else like him from doing something like this.