From THE NEW YORK TIMES:
At 3:31 p.m., a masseuse arrived the fourth-floor apartment of the building, at 421 Broome Street in SoHo, for an appointment with Mr. Ledger, the police said. The masseuse was let in to the home by a housekeeper, who then knocked on the door of the bedroom Mr. Ledger was in. When no one answered, the housekeeper and the masseuse opened the bedroom and found Mr. Ledger naked and unconscious on a bed, with sleeping pills — both prescription medication and nonprescription — on a night table. They moved his body to the floor and attempted to revive him, but he did not respond. They immediately called the authorities.
UPDATE: The NY TIMES have corrected the statement that the apartment was owned by an Olsen twin.
A representative of Ms. Olsen said that the apartment did not belong to the actress. “It is not her apartment,” the representative, Annette Wolf, a publicist for Ms. Olsen, said in a phone interview. “She does not own the apartment. She has never owned the apartment. She and her sister have an apartment in New York City but they are not in this building.”
First Brad Renfro, now Heath. Who’s next?
Thanks to Angela and Brian and all the commenters for the tip.