As Oswald ran south on Patton Avenue toward Jefferson Boulevard he was moving in the direction of a used-car lot located on the southeast corner of this intersection.[C4-559] Four men--Warren Reynolds,[C4-560] Harold Russell,[C4-561] Pat Patterson,[C4-562] and L. J. Lewis[C4-563]--were on the lot at the time, and they saw a white male with a revolver in his hands running south on Patton. When the man reached Jefferson, he turned right and headed west. Reynolds and Patterson decided to follow him. When he reached a gasoline service station one block away he turned north and walked toward a parking area in the rear of the station. Neither Reynolds nor Patterson saw the man after he turned off Jefferson at the service station.[C4-564] These four witnesses were interviewed by FBI agents 2 months after the shooting. Russell and Patterson were shown a picture of Oswald and they stated that Oswald was the man they saw on November 22, 1963. Russell confirmed this statement in a sworn affidavit for the Commission.[C4-565] Patterson, when asked later to confirm his identification by affidavit said he did not recall having been shown the photograph. He was then shown two photographs of Oswald and he advised that Oswald was “unquestionably” the man he saw.[C4-566] Reynolds did not make a positive identification when interviewed by the FBI, but he subsequently testified before a Commission staff member and, when shown two photographs of Oswald, stated that they were photographs of the man he saw.[C4-567] L. J. Lewis said in an interview that because of the distance from which he observed the gunman he would hesitate to state whether the man was identical with Oswald.[C4-568] Murder Weapon When Oswald was arrested, he had in his possession a Smith & Wesson .38 Special caliber revolver, serial number V510210. (See Commission Exhibit No. 143, p. 170). Two of the arresting officers placed their initials on the weapon and a third inscribed his name. All three identified Exhibit No. 143 as the revolver taken from Oswald when he was arrested.[C4-569] Four cartridge cases were found in the shrubbery on the corner of 10th and Patton by three of the eyewitnesses--Domingo Benavides, Barbara Jeanette Davis, and Virginia Davis.[C4-570] It was the unanimous and unequivocal testimony of expert witnesses before the Commission that these used cartridge cases were fired from the revolver in Oswald’s possession to the exclusion of all other weapons. (See app. X, p. 559.)