From what I’ve read, your account seems the most likely.
Good summary.
Zimmerman probably started the trouble. Somewhere along the way, he became the one in danger.
Eventually he was using self-defense. Though the fact (if it’s a fact) that he initiated contact, armed, is not a point in his favor.
He does seem to meet the criteria toward the end of the altercation, to have been in real fear for his life.
At that time - once the larger Martin had Zimmerman on the ground pounding his head by some accounts, one or the other of the two was probably not going home that day.
I’m no lawyer, so I’ll not pretend to opine as to what crimes may have been committed.
However clearly the story is being wildly spun in the media.
Hmm.
Did you realize Florida's "stand your ground" law does not require you to stay around ~ you can still flee if you wish ~ and that doesn't repeal your right of self-defense under that law.
We have Zimmerman's own words regarding Martin fleeing the scene!
When Zimmerman exited his truck he began tracking his quarry.
Hmm.
One stranger following another, could be "starting trouble".
Other important questions would be...
Was Zimmerman's vehicle marked in any way, lights, door sticker etc... .
Was Zimmerman wearing any kind of jacket that said 'security' or 'neighborhood watch' etc. Since Zimmerman was clearly dedicated to the cause I'd be surprised if he didn't 'look' the part when 'on duty'.