Authorities have arrested a 28-year-old Los Angeles man in connection with the overdose death of Mac Miller.

Federal court documents reveal that Cameron James Pettit provided Mac Miller with counterfeit oxycodone pills. The pills were laced with a lethal dose of fentanyl and were obtained two days before Mac Miller’s death.

Pettit is being charged with one count of distribution of a controlled substance. He faces a statutory maximum sentence of 20 years in prison if found guilty.

Mac Miller—born Malcolm James McCormickwas found unresponsive in his home on September 7th of 2018.

The LA county coroner’s office investigated the death and ruled it as an accidental overdose. Miller’s body tested positive for a combination of powerful chemicals, including fentanyl, cocaine, and alcohol.

According to court documents, Mac Miller texted Pettit just days before his death asking for drugs. Pettit agreed to get the rapper oxycodone pills, cocaine, and Xanax to be delivered to his Los Angeles recording studio.

U.S. Attorney Nick Hanna issued a statement on the findings and the dangers of fentanyl.

“Fentanyl disguised as a genuine pharmaceutical is a killer — which is being proven every day in America. Drugs laced with cheap and potent fentanyl are increasingly common, and we owe it to the victims and their families to aggressively target the drug dealers that cause these overdose deaths.”

Other text messages sent after Miller’s death show Pettit was aware of his actions. Pettit sent Instagram messages to friends following the death saying, “most likely I will die in jail” and “I think I should probably not post anything, just to be smart.”

The U.S. Attorney’s Office revealed in a press conference today that two other people supplying the rapper haven’t been charged. Pettit supplied Miller with drugs for months, but he wasn’t the only supplier for the rapper.

When asked if Pettit might face murder charges, the U.S. Attorney stated,

“I’m not going to speculate on what he might be charged with in the future. As of right now, he faces one federal charge of distribution of controlled substances.”

The investigation is ongoing.