Richard Pryor
Considered one of the greatest and most influential stand-up comedians of all time, Pryor was a legend.
He grew up in a brothel, was raised by an abusive grandmother, was sexually abused when he was 7 and expelled from school at 14. He joined the army, but spent the entire time in army prison for attacking a racist white soldier.
His career in Hollywood was insane and his collaborations with Gene Wilder were hilarious. But he also freebasing cocaine and had a notable accident where he spilled 151-proof rum on himself, caught fire and ran down the street.
In his later years, he was afflicted with MS and died of a heart attack in 2005.
I was just going to comment on the math but you beat me to it.