According to the Los Angeles County Department of Medical Examiner-Coroner, Miller, 26, passed away from "mixed drug toxicity," that included "fentanyl, cocaine and ethanol."
"The manner of death was certified as an accident," a spokesperson for the medical examiner told Radar in a statement.
As Radar previously reported, Miller, whose birth name is Malcolm McCormick, was found dead at his Studio City home on September, 7, 2018.
It was revealed following his death, that Miller left his multi-million dollar estate to his parents.
We pay for juicy info! Do you have a story for RadarOnline.com? Email us at firstname.lastname@example.org, or call us at (866) ON-RADAR (667-2327) any time, day or night.