re: But that does not mean Trayvon threw the first punch
I am trying to think of a reason Zimmerman would have to throw the first punch. He was the one who was armed and knew he could defend himself. If he threw a punch and got into close quarters, there would be a chance that Martin could take his weapon. Zimmerman would have been very foolish to engage first.
People are reaching for answers. Zimmerman could have shot him at anytime and made up a story if he was targeting this kid. Some even suggests he had his weapon out. I doubt that for the simple fact he was hit. Keltec PF9s don't have safeties. For him to rack and load would have been hard to do during a struggle.