we don't know who swung first. The only evidence that trayvon swung first is the word of a man who lied about a few other things about that confrontation.
So I consider that evidence to be discredited. Anyway, doesn't matter who swung first - still a legal shoot because under FL law, EVEN IF Zimmerman chased trayvon down and started the fight - at some point DURING the fight, the person that started it is allowed to decide "I WISH TO EXIT THIS FIGHT" and then, if trayvon keeps punching, zimm can shoot in self-defense.
So the shoot was legal - even if Trayvon or zimm started it. I just think it's ignorant as fck to believe zimmerman on that, when he lied about the other details. It's okay to say "we just don't know who started fight - doesn't matter because shoot is legal either way". It's ignorant to say "I believe zimmerman, who lied about the other thigns".