Guns - With 400 million guns in the US of which 1.5 million AR15’s having been sold it’s closing the barn doors. Banning assault rifles makes sense but will only lead to higher prices for AR15’s already sold. Unless one supports forced confiscation. And if so how do you do that? Court cases to follow.
Red Flag Laws - Take people who are known threats to themselves or others and institutionalize. But on what basis and for how long and who decides when they no longer present a threat.
Parental Responsibility - If your child lives with you and fails a background check police should with a warrant remove all guns from your home. Court lawsuits with that one.
FBI Privacy Laws - Allow the FBI access to hack suspect email and computers for known violent websites and individuals who log on to be questioned, retained or watched. Court cases.
That might help but the real issue is how our young people are being raised. I have no answers for that.