The New York medical examiner's office declared today that actor Heath Ledger died of an accidental overdose of anti-anxiety drugs and sleep aids. Autopsy and toxicology results find that Ledger wasn't under the influence of illegal substances at the time of his death at his SoHo apartment on January 22nd. "The medical examiner released results of the toxicology report Wednesday, saying Ledger died as the result of acute intoxication by the combined effects of oxycodone, hydrocodone, diazepam, temazepam, alprazolam, and doxylamine." [WNBC]