One element I would add to this is the seeming total incomprehension certain racially privileged individuals seem to have regarding the psychological impact of being personally and demographically othered day in and day out for one's entire conscious life. Many such people can barely handle a single act of passing rudeness on a supermarket checkout line or on a local thoroughfare. They are in no position to judge the range of emotional responses a black teen male might have to the umpteenth personal insult by someone willfully or unconsciously abusing their authority. This is not to excuse any true assault and battery ZImmerman might have suffered. But let's get real. It is a bit unrealistic to expect someone like Trayvon to respond to unwarranted harassment by a wannabe punk with "No, suh, I ain't up to no good at all, suh. Yes, suh, Ah will be on my way suh."