artists filed a legal brief with the united states supreme court on behalf of pittsburgh rapper jamal knoxstage name mayhem mile. in in prison for lyrics threatening two police officers in a 2012 song. allies are contending that his lyrics while provocative, fall within the scope of protected speech but are being subjected to a double standard that is unique to hip hop. joining me now, jamilla lamal, columnist and strategist. which whole question of why they have gone after this particular artist, this particular rapper, and now many in the hip hop community have come together and have filed a brief on his behalf, give us the background and the contention here. >> well, you know, there are different standards for different groups of people in this country, as we know, and unfortunately this young man has not been able to express his legal -- to exercise his legal right, to express himself creatively. a lot of us take issue with the violence this rap music. it's something you have spoken out about in the past, it's something i take issue with. legally the artists have the right to say thing