I don’t know what made me think that there was firecrackers throwed out of the Book Store unless I did hear the second shot, because I positively thought the first shot was a backfire, and subconsciously I must have heard a second shot, but I do not recall it. I could not swear to it.[C3-11] Brennan quickly reported his observations to police officers.[C3-12] Brennan’s description of the man he saw is discussed in the next chapter. Amos Lee Euins, a 15-year-old ninth grade student, stated that he was facing the Depository as the motorcade turned the corner at Elm and Houston. He recalled: Then I was standing here, and as the motorcade turned the corner, I was facing, looking dead at the building. And so I seen this pipe thing sticking out the window. I wasn’t paying too much attention to it. Then when the first shot was fired, I started looking around, thinking it was a backfire. Everybody else started looking around. Then I looked up at the window, and he shot again.[C3-13] After witnessing the first shots, Euins hid behind a fountain bench and saw the man shoot again from the window in the southeast corner of the Depository’s sixth floor.[C3-14] According to Euins, the man had one hand on the barrel and the other on the trigger. Euins believed that there were four shots.[C3-15] Immediately after the assassination, he reported his observations to Sgt. D. V. Harkness of the Dallas Police Department and also to James Underwood of station KRLD-TV of Dallas.[C3-16] Sergeant Harkness testified that Euins told him that the shots came from the last window of the floor “under the ledge” on the side of the building they were facing.[C3-17] Based on Euins’ statements, Harkness radioed to headquarters at 12:36 p.m. that “I have a witness that says that it came from the fifth floor of the Texas Book Depository Store.”[C3-18] Euins accurately described the sixth floor as the floor “under the ledge.” Harkness testified that the error in the radio message was due to his own “hasty count of the floors.”[C3-19] Other witnesses saw a rifle in the window after the shots were fired. Robert H. Jackson, staff photographer, Dallas Times Herald, was in a press car in the Presidential motorcade, eight or nine cars from the front. On Houston Street about halfway between Main and Elm, Jackson heard the first shot.[C3-20] As someone in the car commented that it sounded like a firecracker, Jackson heard two more shots.[C3-21] He testified: