Robin Williams

Acting legend Robin Williams is dead, after committing suicide, said reports. He was 63.

A press release by the coroner’s office said the actor’s body was found unconscious and unresponsive inside his home in Tiburon (north of San Francisco, Calif.) at around noon on Monday (August 11). He was pronounced dead shortly after.

The coroner suspects the death was “a suicide due to asphyxia, but a comprehensive investigation must be completed before a final determination is made.” Asphyxia refers to suffocation or choking.

“Robin Williams passed away this morning,” Williams’ PR rep confirmed in a statement. “He has been battling severe depression of late. This is a tragic and sudden loss. The family respectfully asks for their privacy as they grieve during this very difficult time.”

TMZ says Williams went back to rehab last month for alcohol abused. He previously struggled with cocaine and alcohol abuse in the early ’80s, but was sober for 20 years.

Robin’s wife, Susan Schneider, says, “This morning, I lost my husband and my best friend, while the world lost one of its most beloved artists and beautiful human beings. I am utterly heartbroken.”

His last tweet was on July 31, in which he wished his daughter Zelda Rae a happy 25th birthday, accompanied by a #tbt instagram pic of himself holding her as a child.