I would point out that it could also be Islamic related. Remember, the guys who were just arrested a couple of weeks ago for wanting to blow-up airliners and a synagogue were also black. They were prison converts to Islam.
Not to buy blindly into a stereotype, but they have more of a gang-look to me. But, who knows.
Yes, they could be Islamic, but who would we lay the blame on if they were? Answer: the left wing MSM and their followers who claim that Islam is a religion of peace and we just need to get along! Plus, we can castigate the Bozo to no end for his connections to Islam.
Either way, the left wing is to blame for this. If they can blame Bill O. for the murder of Tiller because of what he said about baby killers on his program then we can blame the left for saying how terrible army recruiters and the military are. It works both ways and the sooner we realize that and start using their tactics against them, the better for us and America.