People think that having a gun is going to give them magical powers, but it doesn’t. I think somebody with a gun could have killed this guy and spared us all a costly trial, but there is no way that an audience member could have reacted fast enough to prevent the killings.
I’m not opposed to people being armed, and i think it could have helped; but what I’m saying that it’s not a magic charm. What we need is a mental health system that realizes that a good part of its job is to protect the average citizens, not to kowtow to nutcases.
Remember the guy had full body armour on i including legs and throat.
Unless you had a clean shot through the face and eye mask, even hitting him w a 9mm would not have done much and he would have immediately returned fire and you would have wound up dead.