Zimmerman acted very foolish. He should not have got out of the car, and should have done what the dispatcher told him to.
He didn't. He acted very foolishly. That doesn't mean that his life was not in danger, but does mean he put himself in a stupid situation. He had called in that there was a strange man walking around acting suspicious, and had started following the man. He was advised not to get out of the car, and not make contact. He did so.
Was that wise? Would any lawyer or cop say “Good move!”? His life was turned upside, and the best he can hope for is that the civil rights charges that are coming are thrown out. He can't go home, and has a bounty on his head, for what? Being foolish is often a very costly thing.
None of your information is “Known” but rather supposed or injected out of ignorance.
If we do not defend our homes, friends, neighbors, mankind we remain ignorant spineless victims and are nothing more than sheep being led to slaughter.
I prefer men be bold, honest and hold others to the same standards otherwise we become spineless wimps, prey to every villain.
Cultivate the image of being a "Nigga" and pick fights openly -and- attack an individual who has NOT struck a blow against you, you are likely to (eventually) come up against someone who will shoot you.
Long live survival of the fittest - not necessarily the most sophisticated.