• Video
  • Shop
  • Culture
  • Family
  • Wellness
  • Food
  • Living
  • Style
  • Travel
  • News
  • Book Club
  • Newsletter
  • Privacy Policy
  • Your US State Privacy Rights
  • Children's Online Privacy Policy
  • Interest-Based Ads
  • Terms of Use
  • Do Not Sell My Info
  • Contact Us
  • © 2026 ABC News
  • News

Robin Williams' Death Report Finds Lewy Body Dementia

NaN:NaN
Robin Williams May Have Had Dementia-Linked Hallucinations Before Suicide
Dan Steinberg/AP Photo
ByLIZ NEPORENT
November 12, 2014, 7:11 PM

— -- Robin Williams had a common but difficult to diagnose condition known as Lewy Body Dementia and this may have contributed to his decision to commit suicide last August, according to documents included in his autopsy report.

The coroner in San Rafael, California, released its autopsy report as well as a pathology report from the University of California San Francisco documenting the comedian's condition.

All people with LBD have dementia, and sometimes appear confused and disoriented and exhibit unusual behavior, said Angela Taylor, the director of programming for the Lewy Body Dementia Association. According to the coroner’s report, Williams had been acting strangely before his death. He is said to have kept several watches in a sock and was very concerned about keeping the watches safe.

Related Articles

The Latest Parkinson’s Disease News

Related Articles

New Clues to Robin Williams’ Final Hours

Related Articles

Girl Wants to ‘Shake It Off’ For Parkinson’s Disease

“The dementia usually leads to significant cognitive impairment that interferes with everyday life,” Taylor said, adding that people with LBD often struggle with tasks like eating, staying clean and paying bills.

People with LBD tend to experience extremely graphic hallucinations that are visual but can also include smells and sounds, Taylor said. Many with the diagnosis have Lilliputian hallucinations populated by small people or creatures. They usually don’t find these frightening, just very real, she said.

While difficult to distinguish from Parkinson’s disease – which Williams also had -- LBD isn’t rare, Taylor said. It’s one of the most common forms of dementia and affects more than 1.4 million people in the U.S. according to the association’s latest statistics.

Like Williams, many people who have LBD are initially diagnosed with Parkinson’s. As the diseases progress they begin to show LBD symptoms including trouble sleeping and the vivid hallucinations. Hunched posture, rigid muscles, a shuffling walk and trouble initiating movement, are similar for both conditions. Some are also diagnosed with Alzheimer’s or a psychiatric disorder.

Despite how common LBD seems to be, doctors have difficulty making the correct diagnosis, Taylor said. In the early stages, cognitive function fluctuates and people who have it may be able to pull themselves together for periods of time, Taylor explained.

“If you didn’t know them you may not realize anything is wrong,” she said.

The diagnosis is often confirmed after death when looking through a microscope reveals Lewy Bodies, tiny protein deposits on the nerve cells of the brain. The autopsy of Williams’ brain showed Lewy Bodies as well as other brain changes that are the hallmarks of Alzheimer’s and Parkinson’s, according to the report.

Medical experts can’t say for sure whether LBD contributed to William’s suicide. He also suffered from clinical depression and had a history of drug and alcohol abuse, though he had no drugs or alcohol in his system when he died, according to the autopsy report.

“Though his death is terribly sad it’s a good opportunity to inform people about this disease and the importance of early diagnosis,” Taylor said.

Up Next in News—

This San Francisco shop is run completely by an AI agent

April 23, 2026

Mother charged after teen son allegedly hits and injures 81-year-old veteran while riding e-motorcycle

April 23, 2026

UK bill banning smoking products for those born after 2008 is one step away from becoming law

April 22, 2026

Pilot killed in Florida plane crash hailed as hero

April 21, 2026

Shop GMA Favorites

ABC will receive a commission for purchases made through these links.

Sponsored Content by Taboola

The latest lifestyle and entertainment news and inspiration for how to live your best life - all from Good Morning America.
  • Contests
  • Terms of Use
  • Privacy Policy
  • Do Not Sell My Info
  • Children’s Online Privacy Policy
  • Advertise with us
  • Your US State Privacy Rights
  • Interest-Based Ads
  • About Nielsen Measurement
  • Press
  • Feedback
  • Shop FAQs
  • ABC News
  • ABC
  • All Videos
  • All Topics
  • Sitemap

© 2026 ABC News
  • Privacy Policy— 
  • Your US State Privacy Rights— 
  • Children's Online Privacy Policy— 
  • Interest-Based Ads— 
  • Terms of Use— 
  • Do Not Sell My Info— 
  • Contact Us— 

© 2026 ABC News