Robin Williams' Widow, Susan Williams, recently gave her first interview since her husband's death. In the interview and following statements, she has revealed a lot of new information to help the public understand and contextualize his suicide.
It was not depression that killed Robin. Depression was one of let's call it 50 symptoms and it was a small one.
According to Susan, it was Lewy Body Dementia that ultimately killed him. Robin was diagnosed with Parkinson's before his death, but during his autopsy, doctors found out that the Parkinson's-like symptoms were actually because of LBD, a disease that "shares characteristics of both Alzheimer's and Parkinson's disease."
LBD made everyday life for him incredibly difficult. Among a plethora of symptoms, he suffered from "anxiety, delusions and impaired movement" After an incident in which Robin couldn't remember how he got a bloody gash on his head, Susan recalled that his state of wellness took a turn for the worse.
He was supposed to start living in an inpatient treatment facility and would've been "lucky" if he lived more than three more years. This was a "pivotal moment" for Robin, who chose to end his life before being hospitalized.
There is currently no cure for the disease.