From Wikipedia
The assassination of John F. Kennedy, the thirty-fifth President of the United States, took place on Friday, November 22, 1963, in Dallas, Texas, at 12:30 p.m. Central Standard Time(18:30 UTC) in Dealey Plaza. Kennedy was fatally wounded by gunfire while riding with his wifeJacqueline in a Presidential motorcade. The ten-month investigation of the Warren Commission of 1963–1964, the United States House Select Committee on Assassinations (HSCA) of 1976–1979, and other government investigations concluded that the President was assassinated by Lee Harvey Oswald. This conclusion was initially met with support among the American public, but polls conducted from 1966 on show as many as 80% of the American public hold beliefs contrary to these findings.[1][2] The assassination is still the subject of widespread debate and has spawned numerous conspiracy theories and alternative scenarios. In 1979, the House Select Committee on Assassinations (HSCA) found both the original FBI investigation and the Warren Commission Report to be seriously flawed. The HSCA also concluded that there were at least four shots fired and that it was probable that a conspiracy existed. Later studies, including one by the National Academy of Sciences,[3] have called into question the accuracy of the evidence used by the HSCA to support its finding of four shots.
Just before 12:30 p.m. CST, Kennedy’s limousine entered Dealey Plaza and slowly approached the Texas School Book Depository head-on. Nellie Connally, then the First Lady of Texas, turned around to Kennedy, who was sitting behind her, and commented, "Mr. President, you can't say Dallas doesn't love you," which President Kennedy acknowledged.[4][5]
When the Presidential limousine turned and passed the Depository and continued down Elm Street, shots were fired at Kennedy; a clear majority of witnesses recalled hearing three shots.[6] There was hardly any reaction in the crowd to the first shot, many later saying they thought they had heard a firecracker or the exhaust backfire of a vehicle.[7] President Kennedy and Texas Governor John Connally, sitting beside his wife in front of the Kennedys in the limousine, both turned abruptly from looking to their left to looking to their right. Connally immediately recognized the sound of a high-powered rifle. "Oh, no, no, no", he said as he turned further right, and then started to turn left, attempting to see President Kennedy behind him.[8]
According to the Warren Commission[9] and the House Select Committee on Assassinations,[10] as President Kennedy waved to the crowds on his right, a shot entered his upper back, penetrated his neck, and exited his throat. He raised his clenched fists up to his neck and leaned forward and to his left, as Mrs. Kennedy put her arms around him in concern. Governor Connally also reacted, as the same bulletpenetrated his back, chest, right wrist, and left thigh. He said, "My God, they are going to kill us all."[11][12]
The final shot took place when the Presidential limousine was passing in front of the John Neely Bryan north pergola concrete structure. As the shot was heard, a fist-size hole exploded out from the right side of President Kennedy's head, covering the interior of the car and a nearby motorcycle officer with blood and brain tissue.[13]
Secret Service agent Clint Hill was riding on the left front running boardof the car immediately behind the Presidential limousine. Sometime after the shot that hit the president in the back, Hill jumped off and ran to overtake the limousine.[14] After the president had been shot in the head, Mrs. Kennedy climbed onto the rear of the limousine, though she later had no recollection of doing so.[15] Hill believed she was reaching for something, perhaps a piece of the president's skull.[16] He jumped onto the back of the limousine, pushed Mrs. Kennedy back into her seat, and clung to the car as it exited Dealey Plaza and sped to Parkland Memorial Hospital.
Governor Connally, riding in the same limousine in a seat in front of the President, was also critically injured but survived. Doctors later stated that after the governor was shot, his wife pulled him onto her lap, and the resulting posture helped close his front chest wound (which was causing air to be sucked directly into his chest around his collapsed right lung).
James Tague, a spectator and witness to the assassination, also received a minor wound to his right cheek while standing 270 feet (82 m) in front of where Kennedy was shot. The injury occurred when a bullet or bullet fragment struck a nearby curb.[17]
No radio or television stations broadcasted the assassination live because the area through which the motorcade was traveling was not considered important enough for a live broadcast. Most media crews were not even with the motorcade but were waiting instead at the Dallas Trade Mart in anticipation of Kennedy's arrival. Those members of the media who were with the motorcade were riding at the rear of the procession.
The Dallas police were recording their radio transmissions over two channels. A frequency designated as Channel One was used for routine police communications. A second channel, designated Channel Two, was an auxiliary channel, which was dedicated to the president's motorcade. Up until the time of the assassination, most of the broadcasts on this channel consisted of Police Chief Jesse Curry's announcements of the location of the motorcade as it wound through the streets of Dallas.
President Kennedy's last seconds traveling through Dealey Plaza were recorded on silent 8 mm film for the 26.6 seconds before, during, and immediately following the assassination. This famous film footage was taken by garment manufacturer and amateur cameraman Abraham Zapruder, in what became known as theZapruder film. Frame enlargements from the Zapruder film were published by Life magazine shortly after the assassination. The footage was repeatedly shown on television, starting in 1975, sometimes omitting the fatal head shot.