Original black and white photographic negative taken by an unidentified Dallas Times Herald photographer. This image shows Dallas police officer Kenneth Heard and other unidentified Dallas police officers standing guard outside the Dallas Trade Mart where President Kennedy was to speak at a luncheon. The Trade Mart is part of the Market Hall complex just north of downtown Dallas.

Original black and white photographic negative taken by an unidentified Dallas Times Herald photographer. This image shows a Dallas police officer and other unidentified Dallas police officers standing guard outside the Dallas Trade Mart where President Kennedy was to speak at a luncheon. The Trade Mart is part of the Market Hall complex just north of downtown Dallas.

Original black and white photographic negative taken by a Dallas Times Herald staff photographer. This image shows the arrival of the hearse from Oneal Funeral Home, carrying the casket for President Kennedy's body, at Parkland Hospital on November 22, 1963.

Original black and white photographic negative taken by a Dallas Times Herald staff photographer, most likely Bob Jackson. This image shows the hearse from Oneal Funeral Home parked at the emergency entrance to Parkland Hospital with its back doors open. The hearse had just arrived with the casket for President Kennedy's body.

Original black and white photographic negative taken by a Dallas Times Herald staff photographer. This image shows a casket from the Oneal Funeral Home being delivered to Parkland Hospital. Oneal driver Aubrey Rike (with dark hair) assists, followed by Dallas Morning News columnist Tony Zoppi (in dark suit). Oneal attendant Dennis "Peanuts" McGuire stands behind Zoppi.

Original black and white photographic negative taken by a Dallas Times Herald staff photographer. This image shows a Dallas police officer speaking into the radio on his motorcycle outside of Parkland Hospital on November 22, 1963. A crowd of people waits behind the line created by the parked motorcycles.

Original black and white photographic negative taken by a Dallas Times Herald staff photographer. This image shows the hearse from Oneal Funeral Home carrying President Kennedy's body as it leaves Parkland Hospital. The hearse is driven by Secret Service agents and Mrs. Kennedy sits by the right rear door next to the casket.

Original black and white photographic negative taken by a Dallas Times Herald staff photographer. This image shows the hearse carrying the body of President Kennedy as it leaves Parkland Hospital for Love Field.

Original black and white photographic negative taken by a Dallas Times Herald staff photographer. This image shows members of the presidential party departing Parkland Hospital for Love Field on November 22, 1963. Lawrence O'Brien, special assistant to the president for congressional relations, is visible in the right rear seat of the car.

Original black and white photographic negative taken by a Dallas Times Herald staff photographer. This image shows a white car joining the motorcade departing Parkland Hospital for Love Field on November 22, 1963.

Original black and white photographic negative taken by Dallas Times Herald and United Press International photographer Darryl Heikes showing Dallas Police Sergeant Roy Shipley guarding the site at 404 E. Tenth Street where Officer J.D. Tippit was shot and killed in Oak Cliff, about 45 minutes after the assassination of President Kennedy. The dark spot on the street near Shipley's foot is stained with Tippit's blood.

Original black and white photographic negative taken by Dallas Times Herald and United Press International photographer Darryl Heikes showing the site at 404 E. Tenth Street where Officer J.D. Tippit was shot and killed in Oak Cliff, about 45 minutes after the assassination of President Kennedy. Witnesses and investigators stand near a parked car. A crime scene investigator's kit is visible in the lower right corner of the image.

Original black and white photographic negative taken by Dallas Times Herald staff photographer William Allen. This image shows the recreation of the sniper's perch by the Dallas Police on the sixth floor of the Texas School Book Depository on November 22, 1963. Police moved the boxes during their search for evidence; this recreation shows the boxes after the police had put them back in what they thought were their original positions.

Original black and white photographic negative taken by Dallas Times Herald staff photographer William Allen. This image shows the recreation of the sniper's perch by the Dallas Police on the sixth floor of the Texas School Book Depository on November 22, 1963. Police moved the boxes during their search for evidence; this recreation shows the boxes after the police had put them back in what they thought were their original positions.

Original black and white photographic negative taken by Dallas Times Herald staff photographer William Allen. This image shows Captain J.W. "Will" Fritz and Elmer Boyd, both of the Dallas Police Department, exiting the Texas School Book Depository on November 22, 1963. Elmer Boyd carries a rifle in his right hand.

Original black and white photographic negative taken by Dallas Times Herald staff photographer William Allen. This image shows Dallas citizen Larry Florer in custody at the Dallas County Sheriff's Department on November 22, 1963.

Original black and white photographic negative taken by Dallas Times Herald staff photographer William Allen. This image shows Dallas citizen Larry Florer in custody at the Dallas County Sheriff's Department on November 22, 1963.

Original black and white photographic negative taken by Dallas Times Herald staff photographer William Allen. This image shows Dallas citizen Larry Florer in custody at the Dallas County Sheriff's Department on November 22, 1963. The man standing has been identified as Deputy Sheriff Harry Weatherford.

Original black and white photographic negative taken by Dallas Times Herald staff photographer William Allen. This image shows Dallas citizen Larry Florer in custody at the Dallas County Sheriff's Department on November 22, 1963.

Original black and white photographic negative taken by Dallas Times Herald staff photographer William Allen. This image shows Dallas citizen Larry Florer in custody at the Dallas County Sheriff's Department on November 22, 1963.

Original black and white photographic negative taken by Dallas Times Herald staff photographer William Allen. This image shows Dallas citizen Larry Florer in custody at the Dallas County Sheriff's Department on November 22, 1963.

Original black and white photographic negative taken by Dallas Times Herald staff photographer William Allen. This image shows the exterior of the Texas School Book Depository the afternoon of November 22, 1963, after the assassination. A police officer and several police motorcycles are visible near the southeast corner of the building. A corner of the Hertz sign can be seen on the roof of the building. Several windows are open on the fifth and sixth floors of the building. An unidentified man in a shirt with rolled sleeves and a tie can be seen moving boxes in the southeast corner window on the sixth floor.

Original black and white photographic negative taken by Dallas Times Herald staff photographer William Allen. This image shows the exterior of the Texas School Book Depository the afternoon of November 22, 1963, after the assassination. Many police officers stand around the entrance and southeast corner of the building. An unidentified man in a white shirt bends over a box visible in the open southeast corner window on the sixth floor.

Original black and white photographic negative taken by Dallas Times Herald staff photographer William Allen. This image shows two Dallas Police officers (Left: Inspector J. Herbert Sawyer. Right: Marvin Wise.) guarding the entrance to the Texas School Book Depository on November 22, 1963 after the assassination. The officer on the right holds a shotgun in his left hand.