Robin Williams' Parkinson's disease was in its early stages when the comedian died of apparent suicide, his wife says.

News of the "Patch Adams" star's death came as a shock to the film industry and to the fans, but the wife confirming Robin Williams' Parkinson's disease shed new light on the actor's personal struggles.

Williams' wife Susan Schneider reveals another side of the comedian's personal life; aside from bouts of depression, Schneider says his husband is battling the degenerative Parkinson's disease.

Schneider statement, as relayed by an agency Thursday: "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."

"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."

News of Robin Williams' Parkinson's disease is the latest news in the events surrounding his death. His personal assistant discovered his body hanging by the neck in his California bedroom last Monday. Autopsy reports suspect a suicide.

Parkinson's disease is a degenerative nerve disorder with a cause and cure yet to be discovered. Celebrities Michael J. Fox and Muhammad Ali have it.

Schneider joins the family and fans in remembering Robin Williams' legacy.

"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. His greatest legacy, besides his three children, is the joy and happiness he offered to others, particularly to those fighting personal battles."

Robin Williams' Parkinson's disease is yet to be confirmed by medical report, and toxicology tests have yet to rule out the possibility of substance abuse in the time of the comedian's death (source: yahoo.com).