Just to triple check - a person who was forbidden from possessing firearms who violated the law about bringing guns on campus and then further violated the law in killing people is somehow going to be affected by universal background checks (wouldn’t affect anything), banning assault weapons (pistol and shotgun used, wouldn’t affect anything) and mandatory registration (still wouldn’t affect anything...)
I think you missed banning the printing of guns on 3d printers and forbidding bump stocks as well as ‘ghost guns’, parts that could be manufactured to complete a weapon...
Those laws surely would have..done nothing to prevent this horrible action.
You not see my sarcasm tag?