The cause of Michael K. Williams‘ death has finally been confirmed.

According to Deadline, the NYC Office of the Chief Medical Examiner announced Friday that Williams died from “acute intoxication by the combined effects of fentanyl, p-fluorofentanyl, heroin and cocaine.” The death was ruled an accident and wouldn’t comment any further on the case.

This comes after weeks of speculation that Williams’ Sept. 6 death might have been a drug overdose, particularly regarding Williams’ history with addiction. His struggle with addiction was noted by Courtney B. Vance in an op-ed for The Hollywood Reporter, writing how he learned about it during a 2019 Three Doctors Foundation Gala where he and Williams were both honored. It would also be the first time they would meet.

“He [Williams] moved the entire room of hundreds of people as he detailed his fight to rid his life of drug addiction and how a pastor, I believe it was in Newark, New Jersey, extended a spiritual lifeline to him in the midst of this battle,” he wrote. “This pastor’s support literally saved Michael’s life, as he told it. And I knew that he was deeply grounded in his faith, which is why I included him in my daily scriptures group text.”

“…I don’t want to be talking about him like this,” he continued later in the op-ed. “…We all struggle with things that have to be overcome. Sometimes in the struggle we win and sometimes we don’t. He lost. But in terms of what his life message and mission was ,he won. He passed that on and people are celebrating and learning lessons from him.”