Philip Seymour Hoffman, the acclaimed, Oscar-winning actor, was found dead in his Manhattan apartment today at the tragically young age of 46. Best known for his powerful roles in films like The Big Lebowski, Doubt, Capote and The Master, Hoffman struggled with addiction throughout his career. He leaves behind his partner, Mimi O’Donnell, with whom he has three young children.

The cause of death has not yet been determined. We will update this post as more information become available.

UPDATE: The New York Times is reporting that an anonymous law enforcement official confirmed a drug overdose, saying that Hoffman was found with a needle in his arm and heroin near his person. If this is true, this is a terribly sad and disturbing development.