Or when you are not expecting it. For goodness sake guys, he jumped into a car, drove south and took potshots at people at random. Do you think any of your gun-toting compatriots would have stopped him quickly?
There are sheep, wolves, and sheepdogs. I trust that my “gun-toting compatriots” would be sheepdogs and spring to action in a situation like this.
Quickly is a subjective word, especially to the Left. Since the concept of private gun ownership is anathema to them, any story would be twisted to suit their need:
“He may have stopped the suspect, but look how many were killed because of the suspect’s gun!”
“He may have stopped the suspect, but look how many were put in danger with TWO people shooting! It was like the Wild West!”
“He may have stopped the suspect, but he didn’t react quickly enough!”
“He many have stopped the suspect, but there are emotional scars by those surprised that he had a gun - how many more are out there?”
He was killed by his own gun, so yes, he would have been stopped by someone armed with a gun or at least restrained.