https://pubmed.ncbi.nlm.nih.gov/12684441/

https://ranchcreekrecovery.com/blog/cocaine-cognitive-function-loss/

It always bugged me that after Williams hung himself and was subsequently diagnosed with Lewy Body Dementia post mortem, NOBODY dared to suggest in print that his infamous decades-long abuse of cocaine (massive amounts) might have caused his brain collapse. 'Turns out there is a damn good chance it did.