Actually, you touch on why I was so confident, after the facts came out, that Martin started the fight with Zimmerman.
I would ask people this simple question: You have two men. One is a short, 30ish pudgy guy with a gun. The other is a tall, lanky guy who gets into fist fights for a hobby and recently lost a scheduled fight.
The two guys confront each other, resulting in a beatdown followed by a shooting. Question: Which guy started the fight?
True. And with Zimmerman, he was fully justified. He called the cops to report something suspicious. Trayvon attacked him from ambush and was slamming his head into the pavement.
Even had Zim actually started the physical fight, Trayvon escalated it into a deadly force situation by repeatedly slamming his head into concrete.