A third man has been arrested in connection with Mac Miller's death, NBC News reports.

The news first broke via TMZ, who obtained court documents identifying the latest suspect as Stephen Walter. Walter has been accused of selling counterfeit oxycodone pills laced with fentanyl — an opioid 50 times more potent than heroin — to Miller before his accidental overdose last year.

Walter is accused of being the source of the pills that were reportedly sold to Miller by another suspect, Cameron James Petit,  who is also currently in police custody. Law enforcement say Petit sold fentanyl-lace pills to Miller two days before his death.

Ryan Reavis, who was arrested earlier this week, is rumored to be Walter's runner and delivered the pills to Miller. Reavis was reportedly charged with possession of marijuana and prescription drugs in addition to weapon offenses and fraud. His bond was set at $50,000 cash-only before he was transferred to Mohave County Sheriff’s Office. He has not been directly accused of causing Miller's death.