The autopsy found heroin , cocaine , ethanol , hydrocodone and alprazolam in Kelly 's blood . Chris Kelly , half of the 1990s rap duo Kris Kross , died of a drug overdose that included heroin and cocaine , his autopsy report said Wednesday . Kelly , together with Kelly , shot to stardom in February with `` Jump '' Their penchant for wearing their clothes backward was widely emulated . The pair reunited for one night in 1992 for a 20th anniversary party .
The autopsy found heroin , cocaine , ethanol , hydrocodone and alprazolam in Kelly 's blood . Kelly , together with Kelly , shot to stardom in February with `` Jump '' Their penchant for wearing their clothes backward was widely emulated . The pair reunited for one night in 1992 for a 20th anniversary party .