We believe it could not have been Lee Harvey Oswald who killed JFK. It was (1) an assassination team who tried to kill JFK, as well as... (2) It could have been Secret Service Agent George Hickey who could have accidentally shot President Kennedy in the head with his cocked-and-loaded Colt AR-15 using a unique six millimeter fragmenting bullet shot from the Secret Service chase car directly following the presidential limousine while swinging his rifle around to engage an active shooter thought to be in the Texas Book Depository. Possibly, while Hickey was swinging his rifle, he accidentally shot the man he was sworn to protect, JFK in the back of the head where the bullet exploded and blew the far side of JFK's head open, killing him dead.