I was not there, I will not armchair quarterback or judge. This is just something I noticed and got thinking about.
The robber had a revolver and group that was robbed was seven people. This might make someone there realize that the robber had no intention of killing his victims because his gun didn't hold enough rounds to do so without reloading (assuming he is using a common, cheaper revolver and not an unlikely high end 7 or 8 shot).
The armed man really had no choice to fight, because he was armed and going to be searched. While the robber initially didn't have the capacity to kill all seven, allowing the 1911 to be found would change that. So while the armed man might have realized that the robber had no intention of killing them, he had lost all choice what was going to happen. Maybe hiding the gun was part of that, but he didn't get out his wallet as instructed.
No, I'm not saying that you shouldn't fight and acquiesce to criminals. I just think it is interesting that his 1911 meant he could not choose the tactic of complying, and was shot 3 times because of it. Not his fault, he did the right thing as best he could.
The best lesson I can extract from this is the importance of fast, decisive action. Especially being able to draw and hit from weird postures.