LOS ANGELES (CNS) — Two of three men charged with supplying the counterfeit, fentanyl-laced pills that led to rapper Mac Miller's fatal overdose are expected to plead guilty Tuesday in Los Angeles to a federal drug distribution charge.

Stephen Walter, 48, of Westwood, and Ryan Reavis, 38, formerly of West Los Angeles, are each set to plead guilty during separate Zoom hearings to a count of distribution of fentanyl, according to the U.S. Attorney's Office.

On Sept. 4, 2018, at the direction of Walter, Reavis supplied counterfeit oxycodone pills to third co-defendant Cameron Pettit, 30, of West Hollywood, according to papers filed in Los Angeles federal court.

Reavis admitted knowing that the pills contained fentanyl or some other controlled substance. Shortly after Reavis handed the fentanyl-laced pills over, Pettit allegedly supplied the pills to Malcolm McCormick — who recorded and performed under the name Mac Miller — two days before the 26-year-old rapper suffered a fatal overdose in Studio City on Sept. 7, 2018, federal prosecutors said.

The case against Pettit is pending.

Miller began rapping at 14 and built a large following before signing with the label of fellow Pittsburgh rapper Wiz Khalifa. Miller released five studio albums and a series of mixtapes during his career. His final album, "Swimming," was released on Warner Records just a month before his death.