The Warren Commission was a group formed by then-President Lyndon B. Johnson to investigate the November 22, 1963, assassination of President John F. Kennedy. Johnson tapped Chief Justice Warren to head the commission. The committee included U.S. representative Gerald R. Ford of Michigan, who would later serve as U.S. president from 1974 to 1977. The Commission concluded that assassin Lee Harvey Oswald was not part of a massive conspiracy but acted alone. The Warren Commission report has been heavily criticized by historians, scholars, and others.