Well, I can't remember the last time a young black man and his girlfriend/wife were raped/tortured and murdered by white OR black men.
It's not that blacks don't kill blacks and often over the most tragically insignificant things. BUT, this kind of savagery is not normally seen inflicted in black on black crimes (unless there's some criminal reprisal or punishment in 'the game' of the underworld.)
Street Cred?