How do I know what? Only two people knows exactly what happened and one is dead to defend himself. What I said was had Zimmerman stayed in his truck, there wouldn't be an incident between those two.
Had Travon never left his house, there wouldn't be an incident either. I mean, you can kinda take this to many extremes and I understand the reasoning but honestly, Zimmerman was part of a neighborhood watch. Travon Martin did not live in the community but was, in fact, a stranger. It is reasonable, IMO, to see why Zimmerman might have been suspicious.
If you are asking me what I think, I think both profiled each other. Zimmerman saw a person he did not know in the neighborhood and he assumed the worst. Martin saw a person following him and assumed he was a White Cracker?
This is terrible and if you want to say that it would be wise to review self defense laws in Florida, I would understand that. Unfortunately, Florida has to do that and because it's their law, they would have to make that decision.
Under the existing laws in Florida, Zimmerman was not guilty. Life is imperfect and I just see this as one of those situations.