I didnt mention it before and it's already been talked about but who the fuck told students to fight in a tweet? Unless the students have guns as well that's a suicide mission, only to be undertaken if there are no other options.
Mind boggling how stupid universities are these days.
It's not as silly as it sounds, of course it's best to not be in a position to be shot at in the first place, but...
Just consider how much cops miss people running at them unarmed, and they're trained (snark about how well they're actually trained aside). There's a reason that the 21 foot rule exists, and that's because within 21 feet your chances of being able to actually shoot, hit, and stop someone running full-bore at you decrease drastically any closer than that, and especially if there's more than one person running full bore at the shooter chances are one or more people will make it to the shooter, and as long as they start beating the shit out of him, there's a good chance that gun becomes less than useful to the shooter. Also let's be real, chances are your average school shooter is not going to be prepared for multiple, preferably screaming, assailants bearing down on his ass: they're expecting passive or cowering targets.
The only weakness is I'm not sure most people will instinctively zerg rush a dude with a gun, even if that is objectively the right decision. You need to be ready to batter a human to death with whatever you can grab and most people just don't think about that or ever think they'll need to.
One might point to Kyle Rittenhouse as a counter-example even though it's kind of the opposite situation (defensive shooting), but that's part of why that situation is so crazy: the people he shot basically approached him just close enough to one at a time to give him time to reorient and reacquire target just long enough to get a shot off on target; his form was almost perfect, intentional or not. It's also worth noting that almost everyone that seriously approached him when he got knocked down
made it to him...they just either died because their aorta got shredded (a perfect shot), ran (technically jump-kick nigga did land his kick, he just didn't commit and ran after), or got their bicep blown up (another perfect shot). If Kyle was a couple degrees off on any of those shots, they make it to him, smack and/or shoot him, and he's likely a dead man.