The father of Muhammad Ali, Cassius Marcellus...
The father of Muhammad Ali, Cassius Marcellus Clay Sr., died at 77 after suffering a massive heart attack.
Clay collapsed Thursday night as he was walking out of a department store in Louisville, Ky., and was dead on arrival at a hospital.
Start your day right
Sign up for Essential California for news, features and recommendations from the L.A. Times and beyond in your inbox six days a week.
You may occasionally receive promotional content from the Los Angeles Times.
