It will be because he murdered a kid armed with a bag of skittles .. a kid that he outweighed by 100 pounds.
Death by 100 cuts is his future.
Even if the kid had only a bag of skittles, if he had GZ on the ground pounding his head into the concrete as people have said in interviews, it is an act of self defense. This would be true regardless of pigmentation and superficial skeletal differences. The first reaction I had on hearing the 911 call as edited by MSDNC was that he was a horrible racist. However I waited until I had more information before I decided to hold off on judgment until I learned the whole of the story. I don't know if GZ will be convicted, but if he is then he likely did murder Trayvon, if he isn't he likely defended himself. I'll let people who get all the information on the Jury decide it.