Mrs. Connally heard a second shot fired and pulled her husband down into her lap.[C2-155] Observing his blood-covered chest as he was pulled into his wife’s lap, Governor Connally believed himself mortally wounded. He cried out, “Oh, no, no, no. My God, they are going to kill us all.”[C2-156] At first Mrs. Connally thought that her husband had been killed, but then she noticed an almost imperceptible movement and knew that he was still alive. She said, “It’s all right. Be still.”[C2-157] The Governor was lying with his head on his wife’s lap when he heard a shot hit the President.[C2-158] At that point, both Governor and Mrs. Connally observed brain tissue splattered over the interior of the car.[C2-159] According to Governor and Mrs. Connally, it was after this shot that Kellerman issued his emergency instructions and the car accelerated.[C2-160] Reaction by Secret Service Agents From the left front running board of the President’s followup car, Special Agent Hill was scanning the few people standing on the south side of Elm Street after the motorcade had turned off Houston Street. He estimated that the motorcade had slowed down to approximately 9 or 10 miles per hour on the turn at the intersection of Houston and Elm Streets and then proceeded at a rate of 12 to 15 miles per hour with the followup car trailing the President’s automobile by approximately 5 feet.[C2-161] Hill heard a noise, which seemed to be a firecracker, coming from his right rear. He immediately looked to his right, “and, in so doing, my eyes had to cross the Presidential limousine and I saw President Kennedy grab at himself and lurch forward and to the left.”[C2-162] Hill jumped from the followup car and ran to the President’s automobile. At about the time he reached the President’s automobile, Hill heard a second shot, approximately 5 seconds after the first, which removed a portion of the President’s head.[C2-163] At the instant that Hill stepped onto the left rear step of the President’s automobile and grasped the handhold, the car lurched forward, causing him to lose his footing. He ran three or four steps, regained his position and mounted the car. Between the time he originally seized the handhold and the time he mounted the car, Hill recalled that-- Mrs. Kennedy had jumped up from the seat and was, it appeared to me, reaching for something coming off the right rear bumper of the car, the right rear tail, when she noticed that I was trying to climb on the car. She turned toward me and I grabbed her and put her back in the back seat, crawled up on top of the back seat and lay there.[C2-164] David Powers, who witnessed the scene from the President’s followup car, stated that Mrs. Kennedy would probably have fallen off the rear end of the car and been killed if Hill had not pushed her back into the Presidential automobile.[C2-165] Mrs. Kennedy had no recollection of climbing onto the back of the car.[C2-166]