It was a while back, so i can't remember the caveats (if any). It may have been for that year or something. A quick dig looks like it holds up though.
This media investigation, aided by Texas State University shows the stats.
According to the data, citizens stopped shooters 50 times in the 316 attacks. But in only 10 out of those 50 incidents did citizens actually stop the shooter by using a gun. The other 40 times, it was with their hands or another weapon.
It also briefly touches on the trauma when an actual good person kills someone.
“I don’t feel like I killed a human,” says Wilson. “I killed an evil and that’s how I’m coping with the situation.”
“The individual did not make any attempt to get up because of his head wound. He didn’t make any… it was just quivering and that was it.”
He is actively forcing himself to not see the shooter as a person and it's clear the image of the person he killed twitching on the ground will haunt him forever.
The pro-gun crowd didn't save that man, they sold him and everybody else in that church out. They armed the mass shooter then used Wilson as propaganda, claiming his trauma is actually the gold standard for dealing with gun violence and that teachers and targeted minorities should be enthusiastically following suit.
I'm sure the fact that it would preserve or increase the profits of a lobby group that gives $16 million a year to Republicans is purely coincidence.
After all, if an industry was causing massive social harm, they'd immediately cease operation for the public good, not suppress research and statistics about how many people they'd killled while astroturfing and hiring politicians as shills.
