Australia-born actor Heath Ledger was found dead in his NYC apartment today. It is reported that he allegedly died of either a drug overdose or hanging at Mary-Kate Olsen's apartment. More details as they come in. Sad. Very much so. Read more about the actor here and here. You may start any and all Brokeback Mountain references starting...now. UPDATE: According to our parent site, Gothamist: The housekeeper and masseuse tried to awake him and......