Robin Williams' wife Susan Schneider provided a possible clue to the actor's apparent suicide on Thursday, revealing that he was in the early stages of Parkinson's Disease.
PICS: Remembering Robin Williams
Schneider released a statement, saying:
"Robin spent so much of his life helping others. Whether he was entertaining millions on stage, film or television, our troops on the frontlines, or comforting a sick child -- Robin wanted us to laugh and to feel less afraid.
"Since his passing, all of us who loved Robin have found some solace in the tremendous outpouring of affection and admiration for him from the millions of people whose lives he touched. His greatest legacy, besides his three children, is the joy and happiness he offered to others, particularly to those fighting personal battles.
VIDEO: Robin Williams' Final Days
"Robin's sobriety was intact and he was brave as he struggled with his own battles of depression, anxiety as well as early stages of Parkinson's Disease, which he was not yet ready to share publicly.
"It is our hope in the wake of Robin's tragic passing that others will find the strength to seek the care and support they need to treat whatever battles they are facing so they may feel less afraid."
Michael J. Fox reacted to the news of Robin's diagnosis via Twitter, writing:
Robin was found dead at his Marin County home on Monday. He was 63. Sheriff's officials determined that his death was due to asphyxia caused by hanging.
Watch the video below to learn more about other high profile celebrities who have been diagnosed with Parkinson's Disease.