On October 29 , 1953 , President Dwight D. Eisenhower commuted Kawakita 's sentence to life imprisonment plus a $ 10,000 fine . After the commutation of his sentence , Kawakita was transferred to the Alcatraz Federal Penitentiary . Ten years later , on October 24 , 1963 , President John F. Kennedy — in what would be one of his last official acts before his assassination — ordered Kawakita released from prison on the condition that he leave the United States and be banned from ever returning . Kawakita flew to Japan on December 13 , 1963 , and reacquired Japanese citizenship upon his arrival . In 1978 , Kawakita sought permission to travel to the United States to visit his parents ' grave , but his efforts were unsuccessful . As of late 1993 , he was living quietly with relatives in Japan
assassination
Assassination of John F. Kennedy
Kawakita v. United States