Heath Ledger died on Jan. 22, 2008, as the result of an accidental overdose of prescription drugs. According to People magazine, forensic pathologist Dr. Michael Hunter explained that the combination of powerful drugs in Ledger's system likely caused "poly-drug intoxication" that led to respiratory arrest.
People magazine states that Ellen Borakove, spokeswoman for the New York City chief medical examiner's office, found that Ledger "died as a result of acute intoxication by the combined effects of Oxycodone, Hyrdocodone, Diazepam, Temazepam, Alprazolam and Doxylamine."
The 28-year-old actor was found dead in his Manhattan apartment. Two years prior to his death, Ledger's daughter, Matilda Rose Ledger, was born to his then-fiancée Michelle Williams. According to Internet Movie Database, he won a Golden Globe 11 days after his death for his role in "The Dark Knight" and an Oscar for the role a year later. Matilda is slated to receive the Oscar when she turns 18; until then, the statuette is in the custody of his father, mother and sister.