But RadarOnline.com has learned that that wasn't the only drug that killed him. A newly released medical examiner's report lists a potent cocktail of dangerous drugs as the reason for Hoffman's tragic passing.
Heroin, cocaine, benzodiazepines (like Valium or Klonopin) and amphetamines (like Adderall), all contributed to a fatal "acute drug intoxication," according to the medical examiner, who also ruled that the overdose was accidental and not a suicide.
Hoffman's body was found in his West Village apartment after he failed to show up for a playdate with his children. Once sober for 23 years, he relapsed last spring and spent some time at a treatment facility working to get back on track.
But in the last weeks of his life, his demons overcame him. He reportedly confessed to a bystander at the Sundance Film Festival in January that he was a "heroin addict." That definition proved fatal just weeks later.
Hoffman died before completing his last film, the final installment of Hunger Games: Catching Fire. Though producers initially admitted he still had several pivotal scenes left, they later said they may digitally recreate him for important scenes.