What if Trayvon was still alive when Zimmerman had him pinned face down? Maybe Trayvon would have been alive had he been face up? Face down would have caused Trayvon to bleed out from a chest wound. Zimmerman didn't try to stop the bleeding imo.
One more thing: if some wannabe gangster had tried to beat me to death and I had to cap him to get him off me, I certainly would NOT have traded spit with the a-hole under ANY circumstances!! Are you crazy or what??
JC