It's easy to say what someone else should do or what you think you would do. Probably depends on the ability to overcome fear, react instantly, confidence in one's physical prowess. This incident probably happened pretty quickly. Plus, the element of surprise was on his side. I'd think twice about attacking a young man who has a gun while I'm un-armed. Now we find out he's an ex-Marine. Probably has some hand-to-hand combat training/experience. The fact that he's nuts would also enter into the equation. I wouldn't try to physically subdue some freak on PCP. Not without a sturdy weapon. And yes, a G26 would be a sturdy weapon.