Robin Williams' untimely death by suicide was caused by a disease called Lewy Body Dementia, sources connected to the late actor's family have revealed in a new report.
The condition, known as the second most common type of progressive dementia after Alzheimer's disease, causes a continuous decline in mental abilities and may cause visual hallucinations.
Related Story: Robin Williams' Death Triggered by Depression, Parkinson's Disease & Paranoia
It is also known to be a common disorder associated with Parkinson's disease, the report states. Following his death, Robin's wife, Susan Schneider, announced her husband had been dealing with the early stages of Parkinson's.
Lewy Body Dementia was reportedly the "key factor" that drove the comedian to end his life on Aug. 11, the sources say. Robin's doctors allegedly agree the disease was the critical factor in his death.
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On Friday, Nov. 7, the Marin County, Calif., coroner ruled the Mrs. Doubtfire star died from a suicide due to depression, Parkinson's disease and paranoia. The discovery that the iconic comedian was suffering from paranoia had not been previously reported.
TMZ was the first to report this news.
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