| UPDATED: 13:50, Wed, Jan 13, 2021 Link copied Sign up for FREE now for the biggest moments from morning TV SUBSCRIBE Invalid email When you subscribe we will use the information you provide to send you these newsletters. Sometimes they'll include recommendations for other related newsletters or services we offer. Our Privacy Notice explains more about how we use your data, and your rights. You can unsubscribe at any time. Only after his death did his shocked family and friends discover that the 63-year-old actor had been suffering from an undiagnosed neurodegenerative brain disease that plagued him with dementia, hallucinations and paranoia. The private hell of Williams’ final days, and the effect that had on the people who loved him, are revealed in a new documentary, Robin’s Wish.