Kris Kross' Chris Kelly Autopsy Complete

There are no signs of trauma or foul play in the death of Kris Kross rapper Chris Kelly, with reports suggesting the 34-year old died after he had taken a mixture of heroin and cocaine being backed up by his mother.

The Fulton County Medical Examiner completed an autopsy Thursday (May 2), but Kelly's official cause of death won't be determined until at least three weeks after the toxicology report is complete, a county rep told MTV News.

Police officers arrived at Kelly's home on Wednesday (May 1) in response to a report of a death. When paramedics arrived on the scene, they found Kelly lying unresponsive on his couch with "no life signs."

He was transferred to Atlanta Medical Centre South, where he was pronounced dead.

According to the report obtained by MTV News US, Kelly's mother, Donna Kelly Pratte, told officers that the rapper — who went by the name Mac Daddy — had taken a mixture of cocaine and heroin the night before, a concoction commonly known as speedballs.

In the report, Pratte is identified as "a close friend" of Kelly and said that she had brought him home to recover from his drug use and that he "had done this several times in the past."

Pratte has since issued a statement on her son's death, writing: "It is with deep sadness that we announce that our beloved Chris Kelly has passed away on May 1. To millions of fans worldwide, he was the trendsetting, backwards pants-wearing one-half of Kris Kross who loved making music.

"But to us, he was just Chris — the kind, generous and fun-loving life of the party. Though he was only with us a short time, we feel blessed to have been able to share some incredible moments with him. His legacy will live on through his music, and we will forever love him."