Trayvons on bikes.
The guy charged with assault is Reginald something or other and he is a member of the Boss Rollaz (a bronx based criminal organization) with a webpage on facebook complete with an homage to their homies that got arrested for trafficking.
The picture of him flipping the bird is actually the gang sign associated with the Boss Rollaz. While the media thinks he is mad at them, he is really expressing solidarity with this criminal organization in the picture.
There are also 5 police officers that were riding with this group for unknown reasons.