Actor Philip Seymour Hoffman dies at age 46

The film and theatre world is mourning the death of actor Philip Seymour Hoffman at his home in New York. He was 46. His body was found after a friend called emergency services. Police say he apparently died of a drug overdose. Many fellow actors have been paying tribute to him.
Background:
Actor Philip Seymour Hoffman dies [BBC]
Philip Seymour Hoffman remembered: Celebrities react to star's death [EW]