The first thing that occurred to me when I read that he was taken down in less than a minute: 3 people are dead and 13 are injured because he had a semi automatic rifle. If he had a different kind of rifle or handgun, perhaps less people die in that 60 seconds.
I’m sure some people will rush in here and tell me that no, he could have done just as much damage with a different kind of gun (or maybe with a knife even!) Jet Li can kill 10 people with his hands in a minute. And suppose he was driving a truck! We’ve heard all the arguments, you guys are free to make them again if you want.
I still think it might have made a difference...