If he was lucky/smart in real estate, he could have made some decent money at that. I don’t recall seeing that he was ever married (or divorced!), or ever had children. That would have saved him thousands of dollars by the time he was 64. Also, didn’t he work for the government (IRS?) at one time? That job probably paid 3X what it was worth, and provided a huge pension after 2 or 3 years on the job. Maybe his bank robber dad left him some cash under a rock in the desert?
I don’t recall seeing that he was ever married (or divorced!), or ever had children.
He worked at the IRS for a short period. I have not seen any mention of regular employment after the 1980’s.