Robin Williams Parkinson's a Factor in Suicide But NOT the Cause 
 
 EXCLUSIVE 
 
 ' Parkinson's diagnosis had an impact on his depressed state ... on both a psychological and physiological level -- but it's NOT why he committed suicide ... multiple sources connected to the family tell TMZ.We're told ... Robin was struggling emotionally with the diagnosis ... like anyone would. Our sources say Parkinson's was NOT the reason for his depression ... something Robin lived with for years. But we're told the Parkinson's news "exacerbated" his depressed state of mind.We're also told doctors were treating Robin with meds to slow the progression of the disease down, and the cocktail -- which was a work in progress to get right -- also had a negative impact on his emotional state.And doctors believe Parkinson's itself physiologically triggers depression in people.But our sources make it clear ... the diagnosis of Parkinson's did NOT trigger Robin's suicide. It was the result of chronic, intense depression that dogged the actor for much of his life. ||||| Robin Williams 'Crazy Ones' Cancellation Devastating 'A Personal Failure' 
 
 Robin Williams -- 'Crazy Ones' Cancellation Devastating ... A 'Personal Failure' 
 
 EXCLUSIVE 
 
 was "devastated' when his TV show, "The Crazy Ones," was cancelled ... sending him into a deep depression that ultimately led to his suicide.Sources who frequently interacted with Williams during the last month of his life tell TMZ ... Williams viewed the cancellation as a "personal failure." As Williams put it to one person just before the show debuted, "My face is all over town [on billboards] and it's all on my back."We're told the cancellation after only 1 season sent Robin into a tailspin -- as one person said, "It hit him hard" -- and that's why he entered the Hazelden Addiction Treatment Center last month -- not for substance abuse, but for depression.To make matters worse, we're told Robin was increasingly depressed that he was older and good roles for him were few and far between. He would talk about, saying even he was having a hard time.Our sources say Parkinson's disease wasn't nearly as significant a factor in his depression as "The Crazy Ones." We're told Robin knew he had the disease for 5 months.One confidant tells us, "Robin was told by doctors the medications were so great he wouldn't even start to show symptoms for 6 or 7 years."
– Robin Williams was struggling with his Parkinson's diagnosis, which he reportedly received five months before his death—but multiple sources tell TMZ that the diagnosis wasn't the reason for his suicide, though it did "exacerbate" the chronic depression he'd lived with for so long. Parkinson's itself is also thought to trigger depression physiologically, and the drugs Williams was taking also had a negative effect on his emotions. But a bigger trigger for Williams' suicide? According to TMZ's sources, the cancellation of Williams' TV show, The Crazy Ones, after just one season. He was "devastated" when the series was canceled, they say, and went into a tailspin that ultimately led to his death. He entered the Hazelden Addiction Treatment Center last month to try to deal with the depression, not substance abuse, they say. "My face is all over town [on billboards] and it's all on my back," Williams reportedly told one friend about the show. Sources say he saw the cancellation as a "personal failure," and was also depressed about how difficult it was to find work in Hollywood at his age. (Michael J. Fox said he was "stunned" to learn Williams also suffered from Parkinson's.)