Enter Jeopardy Think Music: Wikipedia: "on November 22, 1963, independent sources began reporting that three shots had been fired at the President’s motorcade. At 12:34 p.m., approximately four minutes after the shots were fired, the first wire story flashed around the world..."
The theory, generally credited to Warren Commission staffer Arlen Specter (now a U.S. Senator.), posits that a single bullet, known as "Warren Commission Exhibit 399" (also known as "CE399"), caused all of the non-fatal wounds in both President Kennedy and TexasGovernorJohn Connally.