Philip Seymour Hoffman has passed away at the age of 46.

The four-time Academy Award nominee was found dead in his Manhattan, NY apartment, as first reported by the Wall Street Journal. However, more recent reports claim he was found with a needle in his arm, suggesting a drug overdose. Although he had drug problems in the past, the actor checked himself into rehab in 2012 for heroin abuse and is thought to have been clean up until now.

Hoffman’s body was found by his long-time collaborator David Katz, who called 911 after finding Hoffman unconscious on the floor. Paramedics pronounced him dead at the scene shortly after 11am this morning.

Hoffman’s masterful execution of some of the most challenging -not to mention, interesting- roles in movies such as Boogie Nights, Capote, The Master, and The Big Lebowski led to his standing as one of most critically acclaimed screen actors of a generation. In a career spanning 23 years, he has proven himself not only on the screen, but also on the stage. He has been nominated for two Tony Awards, and has directed several productions both on and off Broadway. His other notable film credits include Magnolia, Punch-Drunk Love, Doubt, and Mission Impossible III.

After being nominated for an Academy Award on four separate occasions, he finally won both an Oscar and a Golden Globe in 2006 for his portrayal of journalist Truman Capote.

He was set to feature in the second installment of The Hunger Games: Mockingjay, which will be wrapping production in the coming weeks. However, remains to be seen whether his character, Plutarch Heavensbee, will still feature in the film.

The native of Fairport, NY is survived by his longtime partner Mimi O’Donnell, and their three children Tallulah, Willa, and Cooper.

Watch a clip of Philip Seymour Hoffman in ‘Charlie Wilson’s War’ below: