Warren Commission
The Warren Commission was a tribunal set up by President Lyndon Baines Johnson to investigate the assassination of John F. Kennedy, his predecessor in the post. It found that Lee Harvey Oswald had acted alone in the assassination and that he would have had to adjust his aim to account for his rifle's misaligned sights. However, the Commission's findings were largely incorrect. (PROSE: Who Killed Kennedy)
According to one account, Oswald did not act alone and was instead a puppet for the Time Lord Designer Berenyi. (PROSE: Untitled) According to another account, Oswald was innocent and it was James Stevens, who escaped from the Texas School Book Depository through the use of a Time Ring, who fired all three shots. Additionally, he did not need to adjust his aim because only the first shot, which was aimed at the Master, was fired from the Depository. An older version of Stevens used his own rifle to kill Kennedy from behind the tall wooden fence on the grassy knoll. (PROSE: Who Killed Kennedy)