Parkinson's....there went any prayer of rebuilding the financial accounts. M J Fox gave working with Parkinson's a go and bombed, no one wil try that again for awhile.
Michael J. Fox has not only not "bombed", he's continued to work, despite his Parkinson's, consistently and successfully on a number of series over the years--he's currently on 'The Good Wife'. But he's been rather remarkable in that regard.
I also doubt that "rebuilding the financial accounts" was Williams' main concern since he reportedly had assets of $50 million and could have lived quite comfortably if he never worked again. But his ability to work, and his need to work, and his desire to work, may have mattered very much to him, and that would all be eventually imperiled by Parkinson's, as would be his ability to simply function in daily life.
The recent cancellation of his TV series after a single season might have been much more of an emotional blow to this aging actor, who had achieved such early wide success in this medium, than a wounding financial set-back. He had already completed work on 4 yet to be released films. He was continuing to earn good money, but not winning an audience for his TV series may have been a very personal matter for him.
Williams was already a senior citizen at 63, with a history of serious cardiac problems, and he now faced a future that apparently included a severely debilitating and progressive neurological disease for which there is no cure. The anxiety and depression about what lay in store for him, in every area of his life, may simply have been more than he could bear or tolerate.
And we don't know what else he might have been dealing with...
It's just a sad, sad, loss.