John F. Kennedy Jr. was a person.
John Fitzgerald Kennedy Jr. ( November 25 , 1960 -- July 16 , 1999 ) , often referred to as JFK Jr. or John John , was an American lawyer , journalist , and magazine publisher . He was the only surviving son of former President John F. Kennedy and First Lady Jacqueline Kennedy , and younger brother of former U.S. Ambassador to Japan Caroline Kennedy . His father was assassinated three days before his third birthday . Trained as a lawyer , he worked as a New York City Assistant District Attorney for four years .