'It's The Reflex': Veteran Helped Disarm Gunman At Colorado Nightclub

Watch VideoWhen Army veteran Richard Fierro realized a gunman was spraying bullets inside the club where he had gathered with friends and family, instincts from his military training immediately kicked in.

First he ducked to avoid any potential incoming fire, then moved to try to disarm the shooter.

"It's the reflex. Go! Go...