First Eminem loses his wife, and now, one of his closest friends. Deshaun Holton (aka Proof), a member of the rap group D-12, was shot to death early Tuesday at a Detroit nightclub along 8 Mile road. A spokesperson for the police said that an argument started at the CCC nightclub that ended in gunshots. Two people were shot in the head (one fatally) and although Detroit police would not confirm Holton was the one killed, his record label publicist confirmed it today. In addition to appearing in Eminem's film 8 Mile, Holton was also best man at Eminem's most recent wedding. So sad, what a waste.