Cause of death: natural cause
John Cooper Jr. (September 15, 1922 – May 3, 2011) was an American actor and director. Known as Jackie Cooper, he began his career performing in film as a child, and successfully transitioned to adult roles and directing in both film and television. At age nine, he became the only child and youngest person nominated for the Academy Award for Best Actor, for the 1931 film Skippy. He was a featured member of the Our Gang ensemble in 1929–1931, starred in the television series The People's Choice (1955–1958) and Hennesey (1959–1962), and played journalist Perry White in the 1978–1987 Superman films.
Source : Wikipedia