I don't think it matters who threw the fist blow. I think the important part is that Zimmerman was getting his head pounded into the cement, which can cause anywhere from brain damage to death. Makes it self defense in my book. Whatever happened to not hitting a person when they're down?
It does matter as that is the law, especially if the one killed is not armed.
If Zimmerman threw the first punch then Martin has every right to defend himself and pound heads into cement because Zimmerman HAD A LOADED GUN.
"Not hitting a person when they're down" He had a gun!
Unless he was aiming the gun at Trayvon, it didn't matter that he had one. You don't hit someone when they are down.
You do not know or understand THE LAW. If you are "down" with a gun that is NOT retreating under the law.
How can one retreat when they are down?
Throwing the first puch IS ALWAYS the criteria in ALL self defense cases.
And honey, THIS IS a self defense case.