The Hennepin County Medical Examiner in Minnesota has confirmed that Scott Weiland died of an accidental drug overdose.

Weiland, former frontman with Stone Temple Pilots and Velvet Revolver, was found dead inside a bus on Dec. 3 while on tour with his new band the Wildabouts in Bloomington, Minn. The new report determines that a combination of cocaine, ethanol and the amphetamine MDA stopped his heart.

Weiland had a history of cardiovascular disease, as well as asthma and multi-substance dependence, the medical examiner noted. (His many run-ins with the law included a 1995 arrest with crack and heroin, and a guilty plea for felony heroin possession two years later.) The report places Weiland time of death at 8:27PM.

Police had found an "unknown white substance packaged in baggies" inside Weiland's bedroom on the bus, packaged "common with the way narcotics are packaged," according to a separate police report from that night. They also noted assorted sleeping pills, Viagra and Ziprasidone, which Weiland used to treat his bipolar disorder. Elsewhere, a bag of cocaine was discovered in the bunk of bassist Tommy Black, who was subsequently arrested.

Weiland rose to fame with Stone Temple Pilots, who won a Grammy in 1993 for the song "Plush." Their first four albums sold at least a million copies each, led by the eight-times platinum debut, Core. Weiland later joined Velvet Revolver, which featured Guns N’ Roses members Slash, Duff McKagan and Matt Sorum.

Scott Weiland Dead at 48

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