Robin Williams spent his last days in a paranoid frenzy before committing suicide, claimed a documentary called 'Autopsy
The late American actor stuffed watches and gems into socks and stashed them in a pal's house the day before he died, the Daily Star reported.
Dad-of-three Williams, who was also battling with Parkinson's disease, also frantically searched for drugs on the internet.
A postmortem report showed the 'Jumanji' star had dementia.