Larry Fine suffered another stroke in December 1974. The following month, he suffered a more serious one and slipped into a coma. He died on January 24, 1975, at the age of 72. Devastated by his friend's death, Moe nevertheless decided that the Three Stooges would continue.
Joe Besser died on March 1, 1988, followed by Curly Joe on July 3, 1993. Emil Sitka died on January 16, 1998, making him the last "Stooge" to die (though Sitka never performed on film as a member of the trio, but did appear in a few publicity shots).
So I guess never...but I thought this was a basketball forum...