DJ Roc Raida, he of X-Ecutioners fame, passed away on Saturday following complications after two surgeries Raida underwent following a mixed-martial arts accident (which hasn't really been explained). Raida, real name Anthony Williams, won accolades and many contests around the world thanks to his agile scratching skills, including winning the DMC World Championship in 1995 (video above). He was 37. [Daily Swarm]