Proof, a member of the Eminem-fronted Detroit-based hip-hop sextet D12, was killed early Tuesday morning outside a Detroit nightclub in a shooting that left another man in critical condition.

According to NBC News affiliate WDIV, Proof (real

name: DeShaun Holton) suffered a gunshot wound to the head at the CCC Club on East Eight Mile Road, near Gratiot Avenue. By the time police arrived at the scene just after 5 a.m., the club — which was operating illegally, after hours — had been cleared out, but several witnesses have come forward to discuss the incident with investigators. A spokesperson for the Detroit Police Department said only that "an altercation occurred [inside the club], and shots rang out," but would not discuss the shooting further, as the 30-year-old rapper's next of kin have not yet been notified of his murder.

Both victims (the other man's name has not been released) were transported to area hospitals; Proof was rushed to St. John Holy Cross Hospital, while the second victim, who is 35 and also sustained a gunshot to the head, was taken to St. John Hospital, where he's listed as being in critical condition. Proof was pronounced dead on arrival.

Source - Mtv.com