Celebrities took to twitter Sunday to express their shock and dismay at the tragic death of  Philip Seymour Hoffman.

As Popdust previously reported, the 46-year-old actor was found dead inside his Manhattan apartment with a hypodermic needle still in his arm early this morning.

A personal assistant discovered his body on the bathroom floor of his West Village apartment.

Hoffman struggled with drug abuse issues for most of his adult life and even went to rehab following his college graduation from New York University in 1989—he had 23 years of sobriety under his belt at the time he checked himself back into rehab last May to deal with his addiction.

In 2011, the Oscar winning actor — who won the Academy Award for Best Actor for the 2005 biographical film Capote, told The Guardian newspaper: “It was pretty bad, you know what I mean. And I know, deep down, I still look at the idea of drinking with the same ferocity that I did back then. It’s still pretty tangible.

“I don’t know, I was young, I drank too much, you know, so I stopped. … It’s not really complicated. I had no interest in drinking in moderation. And I still don’t. Just because all that time’s passed doesn’t mean maybe it was just a phase. That’s you know, that’s who I am.”

Celebrities from A-list to D shared their condolences and tributes in 140 characters or less:

Stars Tweet tributes to Philip Seymour Hoffman following his death from a suspected heroin overdose

Stars Tweet tributes to Philip Seymour Hoffman following his death from a suspected heroin overdose

 

Stars Tweet tributes to Philip Seymour Hoffman following his death from a suspected heroin overdose

Stars Tweet tributes to Philip Seymour Hoffman following his death from a suspected heroin overdose

Stars Tweet tributes to Philip Seymour Hoffman following his death from a suspected heroin overdose

Stars Tweet tributes to Philip Seymour Hoffman following his death from a suspected heroin overdose

Stars Tweet tributes to Philip Seymour Hoffman following his death from a suspected heroin overdose

 

Stars Tweet tributes to Philip Seymour Hoffman following his death from a suspected heroin overdose

Stars Tweet tributes to Philip Seymour Hoffman following his death from a suspected heroin overdose

 

Stars Tweet tributes to Philip Seymour Hoffman following his death from a suspected heroin overdose

 

Stars Tweet tributes to Philip Seymour Hoffman following his death from a suspected heroin overdose

Stars Tweet tributes to Philip Seymour Hoffman following his death from a suspected heroin overdose

Stars Tweet tributes to Philip Seymour Hoffman following his death from a suspected heroin overdose Stars Tweet tributes to Philip Seymour Hoffman following his death from a suspected heroin overdose

 

Stars Tweet tributes to Philip Seymour Hoffman following his death from a suspected heroin overdose Stars Tweet tributes to Philip Seymour Hoffman following his death from a suspected heroin overdose

Stars Tweet tributes to Philip Seymour Hoffman following his death from a suspected heroin overdose

Stars Tweet tributes to Philip Seymour Hoffman following his death from a suspected heroin overdose

Stars Tweet tributes to Philip Seymour Hoffman following his death from a suspected heroin overdose

Stars Tweet tributes to Philip Seymour Hoffman following his death from a suspected heroin overdose

Stars Tweet tributes to Philip Seymour Hoffman following his death from a suspected heroin overdose

Stars Tweet tributes to Philip Seymour Hoffman following his death from a suspected heroin overdose

Stars Tweet tributes to Philip Seymour Hoffman following his death from a suspected heroin overdose Stars Tweet tributes to Philip Seymour Hoffman following his death from a suspected heroin overdose