Where did Gene Mullin die?

Sources say that Gene Mullin die at South San Francisco, California.

How old was Gene Mullin when they died?

At the time of Gene Mullin death they was 83 years old.

Gene Mullin died on April 5, 2021.

Yes. Gene Mullin died on April 5, 2021

Gene Mullin born on April 21, 1937. They died on April 5, 2021 at the age of 83.