Very likely. Looser hate-everybody-and-everything black convicts -- good recruits for the Islamists. I think this has been in al queda's game plan for a long time now. Probably seeing the first seedlings germinating. Good thing, being ignorant criminals, they are so stupid that they are easily discovered and caught.
True, they may be ruthless, but they're not brilliant; furthermore, they're so filled with hate that I think sometimes that trips them up, as well. They seem to feel the need to boast and threaten. IIRC, the DC shooter was known for the wild threats he would make, but people just thought he was a nut who liked to talk big. Once upon a time, I think Black Muslims could get away with this, but hopefully it's taken a little more seriously now.