@Baldimo,
Most of the racist comments are coming from his apologist. However, regardless of his past history, at the time of the shooting, Zimmerman was obsessed with burglaries and black males and just assumed Trayvon Martin was one of the no good punks because he was he fit the profile of being young, black and male.
Kind of like the stop and frisk laws which was just struck down. That policy unfairly targeted minorities, making it almost a crime to be a minority.