Rapper Chris Kelly, of the popular 90's duo Kris Kross, has been found dead in his Atlanta home earlier this week (May 1) after a suspected overdose on heroin and cocaine. MTV now report that his autopsy has been completed, with coroners finding no evidence to go against the initial claim that he died of an overdose.

The Fulton County Medical Examiner completed his autopsy yesterday (May 2), however the official cause of Kelly's death won't be determined until for another three weeks at least, as coroners are still awaiting the toxicology report to return. Reports that the Kelly died after he had taken a mixture of heroin and cocaine, claims that were backed-up by his mother, are now looking justifiable, although police must wait until all available information has been collected before they can make a final report.

According to the report obtained by MTV News US, Kelly's mother, Donna Kelly Pratte - who had apparently taken Kelly into her care in order to combat his drug problem - told officers that Kelly, who was 34-years-old at the time of his death and whose stage name was Mac Daddy, died after taking the drug cocktail commonly known as a speedball. Previous deaths from speedballing include John Belushi, Chris Farley and River Phoenix.

Pratte issued a statement on her son's death shortly after the news broke, 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."