Actor Robin Williams was last seen alive inside his home late Sunday night before his body was discovered just before noon Monday, the Marin County Sheriff's Office said.
Authorities are expected to release further details about the Oscar-winning actor's death at a news conference Tuesday, but in a statement, they said Williams was last seen alive inside his Tiburon home at 10 p.m. Sunday. They did not specify by whom or under what circumstances.
The news of the beloved 63-year-old actor's death rocked the nation Monday. TV channels broke into their usual programming to make the announcement, and within minutes, Williams dominated online trending topics. President Obama noted his passing.
Dubbed "the funniest man alive" by Entertainment Weekly in 1997, Williams brought audiences hours of laughter, putting his imaginative spin on characters in film and television. He was lauded for his serious roles as well, winning a best supporting actor Oscar for his performance as Sean Maguire, the therapist who counsels Matt Damon's math genius in "Good Will Hunting" (1997). He also received nominations for "The Fisher King" (1991), "Dead Poets Society" (1989) and "Good Morning, Vietnam" (1987).
Williams was open about his problems with cocaine and alcohol over the years.
The actor spent time on a Hazelden campus in Oregon in 2006. He later explained that drinking had gradually become a problem again after 20 years of sobriety.
Neighbors were stunned by his death.
Kelly Cook, 50, who lives down the street, called the actor "brilliant," as well as "really quiet and private." An avid cyclist, he was often seen riding the Paradise loop, which hugs the Tiburon peninsula.
By Tuesday morning, flowers, candles and memorabilia had piled onto Williams' star on the Hollywood Walk of Fame. Williams had received the last star in front of TCL Chinese Theatre, previously known as Grauman's Chinese Theatre.
Tourists left messages on paper, magazine covers with his face or pictures of Williams from the innumerable charity events he attended over the years.
Times staff writer Lee Romney contributed to this report.