Heath Ledger died from an accidental acute intoxication of prescription medicine, the New York medical examiner's office announced Wednesday.
"Mr. Heath Ledger died as the result of acute intoxication by the combined effects of oxycodone, hydrocodone, diazepam, temazepam, alprazolam, and doxylamine," the office said in a statement.
"We have concluded that the manner of death is accident, resulting from the abuse of prescription medications."
Police found a handful of the aforementioned drugs at the Brokeback Mountain star's apartment on the day of his death, Jan. 22. Among them were alprazolam (Xanax), diazepam (Valium) and lorazepam (Ativan), which are anti-anxiety medications. Other drugs present in the apartment were sleeping aids zopiclone (Lunesta) and the sedative temazepam (Restoril).
Oxycondone treats pain, hydrocodone is an anti-cough drug and doxylamine is a sedating antihistamine.
Shortly after this announcement was made public, Heath's father Kim Ledger released the following statement:
"We remain humble as parents and a family, among millions of people worldwide who may have suffered the tragic loss of a child. Few can understand the hollow, wrenching, and enduring agony parents silently suffer when a child predeceases them. Today's results put an end to speculation, but our son's beautiful spirit and enduring memory will forever remain in our hearts.
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While no medications were taken in excess, we learned today the combination of doctor-prescribed drugs proved lethal for our boy. Heath's accidental death serves as a caution to the hidden dangers of combining prescription medication, even at low dosage.
Our family enjoyed an extremely happy two week visit with Heath just prior to the New Year. Those recent precious days will stay with us forever. We as a family feel privileged to have some of his amazing magic moments captured in film. To most of the world Heath was an actor of immeasurable talent and promise. To those who knew him personally, Heath was a consummate artist whose passions also included photography, music, chess and directing. We knew Heath as a loving father, as our devoted son, and as a loyal and generous brother and friend.
We treasure our beautiful granddaughter Matilda (to our dear Michelle) as well as an unbelievably wonderful network of close friends, forever, around the world. Families rarely experience the uplifting, warm and massive outpouring of grief and support as have we, from every corner of the planet. This has deeply and profoundly touched our hearts and lives. We are eternally grateful.
At this moment we respectfully request the worldwide media allow us time to grieve privately, without the intrusions associated with press and photography."
Following two L.A. memorial services, Heath is expected to be buried in his hometown of Perth, Australia, this weekend.