According to the police report obtained by TMZ, ”Kris Kross” rapper Chris Kelly, 34, had been using a combination of cocaine and heroin the night before his death.

Kelly’s mother called 911 around 3 p.m. EST asking for medical assistance. When paramedics arrived they found Kelly lying on the living room couch unresponsive and with “no life signs.” The paramedics attempted to revive Kelly, but were unsuccessful. Kelly was pronounced dead a few hours after being transported to the hospital.

After the death, cops spoke with Kelly’s mother, Donna Kelly Pratt, who told police the night before Kelly’s medical emergency, he had taken a mixture of heroin and cocaine, commonly known as “speedballs.”

According to the report, Kelly’s mother and Kelly’s uncle both told investigators the rapper had an “extensive history of drug use.”

Below Kriss Kross perform at SoSo Def 5oth Anniversary concert in Atlanta February 2013.