Chris Kelly, one-half of the hip hop duo Kris Kross, died of a drug overdose, reports TMZ.

An investigator from the Fulton County Medical Examiner's Office in Atlanta told the media outlet that Kelly's toxicology screening showed a fatal concoction of drugs in his system, but did not specify which ones. Previously, the site posted information culled from a police report that indicated that his mother believed he was taking heroin and cocaine.

Kelly died tragically May 1, 2013; he was found unresponsive in his home and pronounced dead at the Atlanta Medical Center. An emotional, star-studded funeral took place May 9. TMZ has a home video of what is suspected to be his last moments; it shows him rapping as the cameraman zooms in on several plaques he collected as a multi-platinum-selling child star.

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