IIRC, a black person is about 9 times more likely to be shot by another *black* person than by a white person.
Conveniently, that very minor statistic seems to fall between the cracks.
Also, if memory serves, a *white* person is slightly more likely to be shot by a black person than a white person.
The best compilation of those statistics is in this report, I think:
http://www.colorofcrime.com/colorofcrime2005.html