(CNN) A California man has been arrested for allegedly selling rapper Mac Miller drugs laced with fentanyl days before his death, the US Drug Enforcement Administration announced on Wednesday.

Authorities say 23-year-old Cameron James Pettit and others agreed to sell Miller, whose given name was Malcolm James McCormick, 30 milligram oxycodone pills, as well as cocaine and Xanax, approximately two days before he was found dead in September 2018

Pettit, a resident of the Hollywood Hills neighborhood in Los Angeles, allegedly gave Miller counterfeit oxycodone pills that contained fentanyl, "a powerful synthetic opioid that is 50 times more potent than heroin," according to a DEA press release. Authorities believe Miller snorted those pills prior to his death, the release added.

The Los Angeles County Department of Medical Examiner-Coroner determined in November 2018 that the 26-year-old rapper died from "mixed drug toxicity." The drugs in Miller's system included fentanyl, cocaine, and ethanol, the coroner found

"There are two other individuals who allegedly are responsible for supplying Mac Miller with narcotics," Thom Mrozek, director of media relations for the U.S. Attorney's Office, said in a press conference Wednesday.

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