Rapper Fabolous is in mourning after a childhood friend and associate was fatally wounded on Friday (23Nov07).The Diamonds star's pal Shemal McKinney was spotted by police stumbling out of New York nightclub Duvet at 3:30am, bleeding from multiple stab wounds. It is understood he was stabbed by three unidentified men while a fight broke out between two women.McKinney, 25, later died at St Vincent's hospital at 4:10 am.Police investigating the incident found an 18-centimetre (seven-inch) folding knife covered in blood in a nearby dumpster, and are currently reviewing surveillance footage from the club to establish how the knife was smuggled into the club, reports AllHipHop.com.Fabolous - real name John Jackson - is set to be questioned over the incident. According to reports, McKinney pleaded guilty to possession of crack cocaine with intent to sell on September 2006 and was slated to be sentenced on 6 December (07).