He was American royalty and a cultural icon. JFK Jr.'s promise of living out his political legacy bequeathed to him on the day of his father's assassination was cut short over the Atlantic Ocean one hot July night. Kennedy's death and that of his wife and sister-in-law, were the result of a series of bad decisions Kennedy had made during his last day. A day plagued by stress when his life depended on his ability to think clearly. We examine the string of errors that led to his tragic demise.