Michael J. Fox Stunned By Robin Williams' Parkinson's Disease News

Michael J. Fox took to Twitter after hearing the news that the late Robin Williams had Parkinson’s disease.

“Stunned to learn Robin had PD. Pretty sure his support for our Fdn predated his diagnosis. A true friend; I wish him peace,” the 53-year-old actor tweeted.

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Robin‘s wife Susan Schneider recently revealed that he was suffering the early stages of the disease, which is a “disorder of the brain that leads to shaking (tremors) and difficulty with walking, movement, and coordination.”

In case you weren’t aware, Michael was diagnosed with Parkinson’s Disease in 1991, but kept it secret from the public until 1998.