also, you should do some research on a number of the cases, many times:

psychiatric conditions

fbi already had them on their radar

taking psychotropic drugs

bought their weapons with help or out of state

sometimes were even given their weapons

usually it has turned out the FBI was grooming them for their job

the whole thing was suspicious, horrible and tragic and how quickly politicians jumped on it to take weapons away even harder from people who would have shot this psychotic loon if they were not legally prohibited

always, always, always

just do your research, i've seen dozens of these cases, from Port Arthur to Columbine to dozens of others

i mean, all you get if you ban weapons is like the UK, where they just run around with knives and stab people randomly, great, so, what are the people going to do, throw themselves on top of this guy and get stabbed?