Quoting myself instead of ETA'ing, as this thread moves so quickly:
I'm also going to say that we clearly see in this thread how racial bias is prevalent, even in people who CLAIM they aren't. To be horrifically in fear of a person solely because they have a "grill", etc., is telling us a lot about how NOT very far we have come in stereotyping people. I would no more consider a make-up wearing, suv driving, liposuctioned middleaged housewife to be a worthless alcoholic 'suburban hooker' on Prozac than I would consider a grilled AA teenager to be a , but I DO know plenty of people that DO have that opinion of strumped up women.
There are lots of ways in which people reveal their prejudices. To say that the gf not calling back IMMEDIATELY in a panic, or the father was at fault for not calling SOON ENOUGH is confirmation that there was something inherently -like in Trayvon and therefore he was deserving of being shot down is part and parcel of what makes some very very longterm oppressed people just want to go straight to revolutionary violence. Some people just aren't CAPABLE of making the change within, and when a boy gets shot down, the family gets skewered, and the shooter gets a FREE PASS, it is no different than 1950s lynchings.
We really have NOT come very far after all. It is one of the great griefs of my approaching older years.