36 School shooters/school related violence committed by those under the influence of psychiatric drugs

Not to say you are wrong, but that's a lot of dead people because drugs apparently don't always work. The shooters in this article are ones whose drug information was available. I'd be surprised if many other shooters weren't also on psychiatric drugs. But I don't have any actual facts on that (too lazy and not that important to me),  so don't quote me.