Problem solved in 1968.
“Today we begin to disarm the criminal and the careless and the insane. All of our people who are deeply concerned in this country about law and order should hail this day.- Lyndon Johnson when he signed the 1968 GCA into law.
The liberals didn't let the crisis of a presidential assassination go to waste.
There was nothing like today's shootings at schools. The only gunfire at public schools was the schools' rifle team practicing.
There was the 1966 Texas university tower mass killing.. otherwise it was mostly murders like what occurs hourly in Chicago today.