The question was not about the murder being wrong or right it was about why people say it was raciest. No matter the race killing is bad no reason to turn it into something racist. Calling this racists is in fact the only thing racist.
Well why are you asking a question and ignoring the most important part? It wasn't just a case of a white man following a black man. It was a white man pursuing and shooting an unarmed black kid. It's ludicrous to not see how someone could see racism as being a factor.
That was the scenario or circumstances is this killing. It could have been any combination of races. What exactly other than it happen to be these two races makes it racist is the question. For example it could have been a white man killing an unarmed white man or a black man killing a unarmed black man. These scenarios happen all the time. it just happened to be a white man killing an unarmed black man. People are so easy to pull the race card when crap just happens sometimes and it does not mean it is racist. I am in no way saying this was not a tragic outcome but I still am having trouble seeing the racist side of this unless something racist other than it just happened to be two different races. Has Zimmerman shown to be a racist person in the past, is he part of organizations that tend to be more racists?