Let's have a quick recap of how well guns have done at preventing other mass shootings!
Columbine: Not often talked about, but the school had an armed guard. Not only did he fail to stop the shootings, he very nearly got killed himself and was forced to retreat to the parking lot.
Pulse shooting: There was an off-duty officer in the club who attempted to shoot the attacker with his sidearm. He quickly realised he was completely outgunned and retreated.
Las Vegas shooting: Some members of the band and their road crew had guns. They realised that if they used them they could easily be mistaken for the shooter and so could only hunker down and wait for the cops to handle it.
Gabby Giffords shooting: Giffords herself carried and regularly practiced with a handgun, which did not protect her when she was attacked. Several people in the crowd were armed and drew their weapons, but in the confusion one of them almost shot another, mistaking him for the actual shooter.
Fort Hood: This military base (!) has been the sight of not one but two mass shootings in the past decade. Let that sink in for a minute.
But yeah, I'm sure more guns is the answer. I mean, it can't hurt try, right? It's like Trump said - "We need to let people know: you come into our schools, you're gonna be dead."
Hmm... you know, maybe he could have phrased that a little better...
Yawn... you picked the low hanging fruit. How stunning and brave of you. Seriously low effort. Now go look up the hundreds of incidents that were finished before they started because someone besides the perp had a gun.
You'll have to look at local news though because that stuff rarely goes national. I'd do it for you but frankly you should want to be less ignorant.
Google and all the knowledge of the world at your fingertips, you should have a better idea of what goes on in the world.
Unless your ignorance is willful. Which it looks like it is, because you'll probably shoot back with some BS instead of doing research. Keep regurgitating if it's all you can do. ---