Rapper and singer from Philadelphia, Pennsylvania. He became known in the underground scene for his collaborations with Jedi Mind Tricks, OuterSpace, Dave Ghetto and others. He first collaborated with the JMT camp on Violent By Design under the name Diamondback in 2000. In 2014, he appeared on the Army of the Pharaohs studio albums In Death Reborn and Heavy Lies the Crown. In November 2014, Arnell and Houston rapper Zilla released a collaboration LP titled "The Monster and Mr. Arnell" featuring Blacastan, Des Devious, and Helen Sciandra.