Dude... seriously...
The guy is in a watch and he's responsible for it (which implies that he's likely faced at least one other stressful situation in his life). He's wearing a gun. He could reach for his gun. He could shoot it.
Tell me how you can, considering these facts, think that his life was in real danger?
And before anyone got pinned down, they just both stared at one another in silence? And what: one instant they were there, staring each other off, and the next one had the other under him threatening to kill him? How do you think this remotely possible?
As for where I'm coming from on this...
No, I've not watched nor devoured a great sum of media coverage. I remember the facts of the case as they came out in the first moments, but I can't say I've paid much attention to it since.
No, I'm not some hardcore hard ass. I do have some training in various martial arts, but not enough to say that I wouldn't be scared fighting some stranger on the street.
And no, I'm not an internet tough guy. Please go through a man's contribution to these forum threads before you make such a dumb proposition. If you find anything that would support this alternative, I will gladly and most immediately retract myself and heck! mute myself forever. I try to use reason and arguments, not threats and insults (though I will admit to having had recourse to the latter when drunk or very angry; apologies to those I've insulted).
My point is more simply that, given Zimm's authority AND his carrying a lethal weapon, that man should have had much, much more judgement in addressing the situation, whatever it was. If indeed the guy had little to no training for this kind of situation, he shouldn't have been carrying a lethal weapon. As for criminal intent or guilt, I'm not in a position to make the call. The courts are.
But I do thank you for your ad hominem attack and the reduction of my reasoning under the head of "successful media brainwashing". It was very productive in helping us carry our thoughts further on this issue.