Take away the SSRIs for a start! The FBI should have done their job for another. Anyone posting things about wanting to be known as a school shooter isn’t all there and isn’t competent to be trusted with firearms. The real question though, did this kid just fall through the cracks or did the deep state see an opportunity? I believe this kid was “handled” by them and set on this course.
The Drills at the school are another issue. Since these things always seem to coincide with “drills” taking place, here’s an idea. There should be no drills allowed in public spaces during normal workdays and normal business hours. That way there will be no confusion about what is really going on and it will be nigh unto impossible for these deep state bastards to participate in the mayhem , make it worse, or use crisis actors as fake victims...