Celebrities Mourn Robin Williams

The tragic death Monday of comedian and actor Robin Williams Monday prompted on outpouring of tributes from the show business community on social media. Among them:

Henry Winkler: Robin Williams was like no other ..To watch him create on the spot was a privilege to behold.. Robin you are an angel now !!! REST IN PEACE

Jimmy Kimmel: Robin was as sweet a man as he was funny. If you're sad, please tell someone.

Steve Carell: Robin Williams made the world a little bit better. RIP.

Pink: My prayers+sad heart are with Robin Williams' family tonight. Only met him once, but it was one of the most enjoyable moments of my life RIP

Miley Cyrus: I can't take the Robin Williams news. I've never cried over someone I've never met but I can't stop

Joel McHale: RIP @robinwilliams You were one of the very best that ever was. You were one of my heroes. #RobinWilliams

Ellen DeGeneres: I can’t believe the news about Robin Williams. He gave so much to so many people. I’m heartbroken.

And from President Barack Obama: "He arrived in our lives as an alien — but he ended up touching every element of the human spirit."

Williams, 63, was found dead at his home in Tiburon, CA Monday morning. A rep for the Oscar winner says that Williams had been battling depression recently, and the death is being investigated as a suicide.