The confirmation came Friday to ABC News, with the official cause of death cited as "acute mixed drug intoxication including heroin, cocaine, benzodiazepines and amphetamine." The manner of death was ruled as an accident.
The Oscar-winning actor was found dead Feb. 2 in his Manhattan apartment. The 46-year-old actor said in interviews last year that he had sought treatment for a heroin problem after 23 years of sobriety.
Hoffman appeared in 50 films in less than 25 years. He was nominated for an Oscar for his performances in "The Master," "Charlie Wilson's War" and "Doubt,"and won an Oscar for his leading role in the 2005 film "Capote." He also appeared in films such as "The Big Lebowski" and "Almost Famous" and "The Hunger Games: Catching Fire," as Plutarch Heavensbee.
