The New York City medical examiner's office announced Friday actor Philip Seymour Hoffman's cause of death was an "acute mixed drug intoxication, including heroin, cocaine, benzodiazepines and amphetamine."
Additionally, the manner of his death was ruled an "accident," according to Julie Bolcer, director of public affairs at the NYC Office of the Chief Medical Examiner.
Hoffman, an Academy Award-winning actor, was found dead on the bathroom floor of his fourth-floor Manhattan apartment on the morning of Feb. 2 with a syringe stuck in his left arm. Police found several glassine envelopes containing heroin in the home.
Early this month, three people were charged with drug offenses, one related to heroin possession with the intent to sell and two with cocaine possession in connection to the drugs found in Hoffman's apartment. A fourth person was arrested and questioned but was not charged.
Hoffman, who spoke openly about his long struggle with addiction, checked himself into rehab last year. In 2006, he said he would use "anything I could get my hands on," during an interview with 60 Minutes.
The medical examiner's initial autopsy earlier this month was inconclusive, leading to further tests.