I must respectfully disagree that this is something "that could happen to any of us".
The problem with this logic is that this isn't something that "happened". Robberies, rapes, muggings, these things "happen". This is something he DID, and there's a huge, huge difference.
This could not "happen" to me because I will not initiate confrontation. I will not go looking for trouble. I avoid trouble and deescalate problems at every opportunity. I leave, given any chance. I will not stay unless there is no choice. I will not argue, insult or otherwise escalate a problem.
I have watched that video a couple times now and I come away with the, I believe inescapable, conclusion that he got exactly what he went looking for, exactly what he wanted. This isn't something that happened to him, it's something he did.
Still happily answering to the call-sign Peetza.
The problem, as you so eloquently put it, is choice.
He is no fool who gives what he can not keep to gain what he can not lose.
-Jim Eliott, paraphrasing Philip Henry.