AZ Congresswoman in critical condition after shooting

[Riot]

What they didn't ask him, and what I would want to know, is would Joe have gone outside if he didn't have a gun on him? I would guess not. He still gets credit for being brave.

Joe Zamudio, was in a nearby pharmacy -- armed -- when the shooting began. He rushed over and helped subdue the killer:

"I came out of that store, I clicked the safety off, and I was ready," he explained on Fox and Friends. "I had my hand on my gun. I had it in my jacket pocket here. And I came around the corner like this." Zamudio demonstrated how his shooting hand was wrapped around the weapon, poised to draw and fire. As he rounded the corner, he saw a man holding a gun. "And that's who I at first thought was the shooter," Zamudio recalled. "I told him to 'Drop it, drop it!' "

But the man with the gun wasn't the shooter. He had wrested the gun away from the shooter. "Had you shot that guy, it would have been a big, fat mess," the interviewer pointed out.

Zamudio agreed:

"I was very lucky. Honestly, it was a matter of seconds. Two, maybe three seconds between when I came through the doorway and when I was laying on top of [the real shooter], holding him down. So, I mean, in that short amount of time I made a lot of really big decisions really fast. … I was really lucky.

Zamudio has no professional or military training with weapons. He also, according to the Arizona Daily Star, didn't initially pull out his own weapon because he was afraid of being confused as a second gunman.