News A Broken Promise to Jackie Kennedy Was Responsible for JFK Jr.'s Untimely Death By Isabel Jones Isabel Jones Instagram Twitter Isabel is an Oregon-born and Brooklyn-based writer and editor with a special interest in pop culture. InStyle's editorial guidelines Updated on November 22, 2018 @ 06:00AM Pin Share Tweet Email The “Kennedy curse” has long-plagued America’s First Family, striking even decades before John F. Kennedy took office. And, oddly, much of the tragedy to befall the Kennedys involved air travel. JFK’s older brother, Joseph, a pilot in World War II, was killed in an airplane explosion in 1944. Four years later, in 1948, Kathleen “Kick” Kennedy died in an airplane crash. In 1964 Ted Kennedy broke his back in an airplane crash that killed both the pilot and a campaign aide. And the son of Jackie Kennedy’s late husband, Aristotle Onassis, died in a plane crash during their marriage — an incident Onassis’s daughter, Christina, blamed on the Kennedy curse. Armed with this knowledge, Jackie was adamant that her son, John F. Kennedy Jr., should not entertain his fascination with the skies. In fact, according to Sam Kashner and Nancy Schoenberger’s biography The Fabulous Bouvier Sisters: The Tragic and Glamorous Lives of Jackie and Lee, Jackie “made John swear that he would not pursue his pilot’s license.” On her deathbed, she tasked her partner, Maurice Tempelsman, and brother-in-law Ted Kennedy with holding her son to his promise. Ira Wyman/Getty Images Bettmann/Getty Images Ira Wyman/Getty Images Jackie Kennedy's Sister, Lee Radziwill, May Have Had an Affair with John F. Kennedy As we now know, that wasn’t a promise John Jr. was able to keep. Five years after his mother’s death in 1994, John, his wife Carolyn Bessette, and his sister-in-law Lauren plunged to their death on their way to Martha’s Vineyard in a plane piloted by Kennedy. Allan Tannenbaum/Getty Images