Robin Williams suffered from depression and eventually committed suicide.
Robin Williams finally decided to take his life on August 11, 2014. He had suffered from manic depression for many years and struggled to keep it in control, especially because of his famous and busy lifestyle along with the constant use of alcohol and his past use of illegal drugs.
Six months after his death his widow and children have engaged in contentious legal dispute over his estate. Sadly, it seems as if Robin Williams didn't leave a will to his family members, I wouldn't have thought of writing a will if I was committing suicide.