Stephen Andrew Walter and the Mac Miller Fentanyl Case

Stephen Andrew Walter is the Arizona man who supplied the counterfeit oxycodone pills, laced with fentanyl, that killed rapper Mac Miller in September 2018. A federal judge sentenced Walter to 17 years and six months in federal prison on May 16, 2022, rejecting a plea deal that would have capped his term at 17 years flat.¹ The connection between Stephen Walter and Mac Miller runs through a three-person distribution chain that federal prosecutors traced back from Miller’s Studio City home to a supplier in Arizona.

Walter’s Role in the Supply Chain

Miller, whose legal name was Malcolm James McCormick, was found unresponsive at his Los Angeles home on September 7, 2018, and pronounced dead at 11:51 a.m. at age 26. The Los Angeles County Medical Examiner-Coroner ruled the death an accident caused by mixed drug toxicity involving fentanyl, cocaine, and ethanol.²

Investigators traced the fatal pills through three people. On September 4, 2018, Hollywood Hills dealer Cameron James Pettit agreed to supply Miller with oxycodone, cocaine, and Xanax. Pettit ordered counterfeit oxycodone pills from Walter, who directed a third man, Ryan Michael Reavis, to deliver them to Pettit. Pettit passed the pills to Miller on September 5. Two days later, Miller was dead.³ The pills looked like oxycodone but contained fentanyl, a synthetic opioid far more potent than the drug they were made to imitate.

Walter sat at the top of that chain. In his plea agreement, he admitted that he “knowingly and intentionally directed Ryan Michael Reavis to distribute fentanyl in the form of counterfeit oxycodone pills, to Cameron James Petit.”⁴ Prosecutors also documented earlier drug transactions between Walter and Pettit in the weeks before the overdose.

Arrest and Federal Charges

The investigation, led by the DEA’s High Intensity Drug Trafficking Area Opioid Response Team with help from the Los Angeles Police Department, took about a year. Walter was arrested on September 23, 2019, and ordered held without bond.³

On October 2, 2019, a federal grand jury in the Central District of California indicted Walter, Pettit, and Reavis on three counts. All three were charged with conspiracy to distribute controlled substances resulting in death and with distribution of fentanyl resulting in death. Those two counts carried a mandatory minimum of 20 years in federal prison and a potential life sentence. Walter alone faced an additional count of being a felon in possession of ammunition, which carried up to 10 years.⁵

The felon-in-possession charge tied back to Walter’s record. According to NBC News, he had prior convictions for possession of cocaine base for sale, possession with intent to distribute methamphetamine, and unlawful possession of a firearm by a felon.⁶ He was 46 at the time of the indictment.

Prosecutors cited a June 2019 text from Reavis as evidence that the group knew the danger: “People have been dying from fake blues left and right, you better believe law enforcement is using informants and undercover to buy them on the street do they can start putting ppl in prison for life for selling fake pills.”³ Investigators also determined that Walter had agreed to sell Pettit another batch of counterfeit pills after Miller’s death, and that deals between them continued through August 2019.

The Guilty Plea

On October 25, 2021, Walter pleaded guilty before U.S. District Judge Otis D. Wright II to a single count of distribution of fentanyl. That was a step down from the original indictment: distribution of fentanyl, not distribution of fentanyl resulting in death, and it carried a maximum of 20 years instead of a mandatory floor of 20 years to life.⁷ The plea agreement called for a flat 17-year term.⁸

Why the Judge Rejected the Deal

At Walter’s sentencing on May 16, 2022, Judge Wright refused to accept the 17-year term, finding it fell below federal sentencing guidelines. The judge focused on evidence that Walter continued selling counterfeit oxycodone and cocaine after Miller’s death and right up to his arrest.⁸

From the bench, Judge Wright told Walter: “When you continue to engage in this activity even after your activities killed someone, I’m having a tough time not staying within the guidelines.” He added: “This was a human being who unwittingly took something that will flat out kill you, and I have no idea why we have people out here dealing in this stuff, peddling this stuff.”⁸

Walter apologized to Miller’s family before the sentence came down. “My actions caused a lot of pain, and for that I’m truly remorseful,” he said. He disputed the government’s account that he kept dealing after learning his drugs had killed someone: “On the paperwork where it says that I continued to conduct in that kind of behavior after I knew that there was death, that’s not the truth, your honor.” He also said he had believed the pills he supplied were for Pettit’s personal use, and had no idea they would be resold.⁸

After conferring with his attorney, Walter chose to accept a longer sentence rather than withdraw his plea and risk trial on the original counts, which carried the possibility of life without parole. Judge Wright imposed 210 months, or 17 years and six months, followed by five years of supervised release. The court recommended that Walter complete a 500-hour residential drug abuse program and continue outpatient treatment after release.¹

Where the Co-Defendants Stand

Reavis, who physically delivered the pills from Walter to Pettit, pleaded guilty to a single count of distribution of fentanyl and admitted in his plea agreement that he knew the pills contained fentanyl.⁹ He was sentenced in April 2022 to nearly 11 years in federal prison.¹⁰

Pettit, who handed the pills to Miller, pleaded not guilty. As of the most recent publicly available court activity in late 2024, his case remained pending in federal court.¹¹

1
NPR. Mac Miller Drug Dealer Stephen Walter Sentenced to Prison for Fentanyl Distribution
2
Los Angeles County Department of Medical Examiner-Coroner. Cause and Manner of Death Determined for Mac Miller
3
DEA. Federal Grand Jury Charges Three Men With Distributing Fentanyl-Laced Pills
4
Oxygen. Stephen Walter Found Guilty for Role in Mac Miller’s Death
5
U.S. Department of Justice. Federal Grand Jury Charges 3 Men in Scheme to Distribute Fentanyl-Laced Pills That Caused Overdose Death of Rap Artist Mac Miller
6
NBC News. Convicted Felon, Two Others Indicted in Overdose Death of Rapper Mac Miller
7
Los Angeles Times. Mac Miller Drug Dealer Sentenced to 17.5 Years
8
Rolling Stone. Mac Miller Fentanyl Drug Dealer Sentenced to Prison
9
U.S. Department of Justice. Arizona Man Agrees to Plead Guilty to Distributing Fentanyl in Connection With Overdose Death of Hip-Hop Artist Mac Miller
10
CBS News. Stephen Walter Sentenced to Over 17 Years for Supplying Drugs to Rapper Mac Miller
11
CourtListener. United States v. Walter, 2:19-cr-00594