Everybody seems to agree in principle that keeping guns away from someone like Nikolas Cruz is a good idea. The problem is, spotting people like him ahead of time.
It seems increasingly likely that some form of autism, probably Aspergers, was part of the lethal mix that added up to Nikolas Cruz's bloodthirsty personality. We've also heard that he was depressed, and that he was suffering from the sting of romantic rejection. He may have been on medication. And it seems fairly apparent he had a generalized resentment against Marjory Stonemason Douglas High School, which had expelled him.
But the common thread between Cruz and a lot of the other recent mass killers -- like Christopher Harper-Mercer, Elliot Rodger, Adam Lanza, and Seung-Hui Cho -- has been that they have been on the autistic spectrum.
So the most commonsensical way for Congress to approach keeping guns out of the hands of the mentally ill would be to make it illegal for people with Aspergers, or more severe forms of autism, to have firearms.
Let's pause to consider, just for a moment, what would happen if Congress attempted this.
Aspergers support groups would let forth a primal scream which would be heard coast to coast. They would say that the vast majority of Aspies are law abiding, peaceful citizens -- and they would be right about that.
They would say that Aspies are far more likely to be picked on than they are to pick on other people. They'd be right about that.
The support groups would point out the futility of trying to keep Aspies from having guns, when the vast majority of people who have Aspergers are never even diagnosed. They'd be right about that.
We would be bombarded with lists of all the famous and successful people with Aspergers who had contributed to the development of civilization. Such lists are widespread; and Aspies seem to like to claim kinship with many great men who may or may not have been members of their club. (As long as you're great, if you have any quirks at all, you must be an Aspie, as far as they're concerned.)
Support groups would run ads featuring productive, good-looking, seemingly well-adjusted Aspies and say, see, this is the face of Aspergers.
They would scream discrimination. And they would be right: preventing any group, no matter how much more statistically violent, does constitute discrimination of a sort.
I almost wish Congress would try to appease the Left by "discriminating" against the one group which is in fact far more likely to commit mass shootings than any other.
Good luck with that.