Pope John Paul II in agony after being shot by would-be assassin Mehmet Ali Agca in Saint Peter's Square, May 13, 1981. (Tommy W. Andersen/Keystone/Getty Images)

Pope John Paul II in agony after being shot by would-be assassin Mehmet Ali Agca in Saint Peter's Square, May 13, 1981. (Tommy W. Andersen/Keystone/Getty Images)