Dumping it all in the lap of amateurs and hoping for the best does not seem to be a logical solution to me.
Start working on mental health problems. Many of these shooters have mental health problems and many times have been on FBI list. Listen to the children when they report troubled children within that school. Push for the children in school to say something if they see or notice something. Make sure they stay anonymous..
Who gets to decide whether or not to take the persons constitutional right away? Do we have the FBI order people to be screened and committed? Where is the system to support this and who pays for it? There are too many questions that need to be answered before we can call this a solution.
So what’s your solution now. Just keep going the way we are going. And who is taking away someone’s constitutional right away. Some of these shooters have been on the list. The FBI didn’t take rights away but perhaps could have kept a better eye on them. But I will say you can’t watch everyone that pops up.