The best account I remember of him was someone drawing a lot of parallels between the general gifted/high functioning autistic person and his life. There is just so many similarities that it's difficult to process it another way. Right down to the really intense desire to uphold what their idea of justice was.

Note this isn't a diagnosis or an excuse (people often confuse explanations for excuses a lot), but it was a very interesting comparison that illuminated a lot of things. It provides a lot of potentials as to why for the steps in his life, opposed to the narratives which tend to be "prodigy turned evil" or "vengeful deadbeat" that are common in public narratives. I get why people like those narratives though, it's far less to process when we can paint someone in absolute ways.

Partially that mental illness was the result of the CIA involving him in the MkUltra experiments as a subject.