Note the careful wording! From it we can conclude for certain that the friend was not white--but the report tries to give the impression that it was a pair of white-supremacists. No bias here....
I do have a problem with this. It is kids like this who perpetuate the myth that Rebel Flag stands for racism. Lee and Jackson would be rolling over in their graves if they knew how the Flag was being exploited. This was inappropriate any way you look at it, and I strongly support the right for a state or individual to display the Rebel Flag.