Original black and white photographic negative taken by Dallas Times Herald staff photographer William Allen Friday afternoon after the assassination. This image shows an unidentified witness speaking with law enforcement in front of the Texas School Book Depository.

Original black and white photographic negative taken by a Dallas Times Herald staff photographer showing an unidentified woman outside of Parkland Hospital reacting to news of President Kennedy’s condition on November 22, 1963. The man wearing the cowboy hat is Hurchel Jacks, a Texas Department of Public Safety employee.

Original black and white photographic negative taken by a Dallas Times Herald staff photographer showing an unidentified woman outside Parkland Hospital reacting to news of President Kennedy’s condition on November 22, 1963. The man wearing the cowboy hat is Hurchel Jacks, a Texas Department of Public Safety employee.

Original black and white photographic negative taken by Dallas Times Herald staff photographer Bill Beal. This image shows an unidentified man near the Baker Hotel on Commerce Street in downtown Dallas holding the latest edition of the Dallas Times Herald, the city's afternoon newspaper, with headlines announcing the death of President Kennedy. Signs for the hotel and for Continental Airlines can be seen in the background.

Original black and white photographic negative taken by a Dallas Times Herald staff photographer. This image shows Vice President Lyndon B. Johnson and his wife Lady Bird Johnson awaiting President and Mrs. Kennedy at Love Field on the morning of November 22, 1963.

Original black and white photographic negative taken by a Dallas Times Herald staff photographer. This image shows Vice President Lyndon B. Johnson and his wife Lady Bird Johnson at Love Field on the morning of November 22, 1963.

Original black and white photographic negative taken by Dallas Times Herald staff photographer William Allen. This image shows the view looking onto Elm Street and towards the triple underpass from 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 view looking onto Elm Street and towards the triple underpass from 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 view looking onto Elm Street and towards the triple underpass from 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 view of Stemmons Freeway and the Cabana Hotel from the Texas School Book Depository on November 22, 1963.

Original black and white photographic negative taken by Dallas Times Herald staff photographer William Allen Friday afternoon after the assassination.. This image shows the alleged sniper's perch window on the sixth floor of the Texas School Book Depository.

Original black and white photographic negative taken by Dallas Times Herald staff photographer William Allen Friday afternoon after the assassination. This image shows witness Larry Florer being escorted by Dallas Police officers.

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 Friday afternoon after the assassination. This image shows witness Larry Florer with Dallas Police officers. It appears that Florer is being searched by the officers.

Original black and white photographic negative taken by Dallas Times Herald staff photographer Eamon Kennedy. This image shows Wilda Atkinson standing next to her daughter Kathey Atkinson (far right, head bowed in prayer) outside of Parkland Hospital the day of the assassination.

Original black and white photographic negative taken by a Dallas Times Herald staff photographer. This image shows an unidentified woman in the crowd outside Parkland Hospital reacting to the news of President Kennedy's death on November 22, 1963.

Original black and white photographic negative taken by Dallas Times Herald staff photographer Bill Beal. This image shows two women and a child gathered on Main Street among the crowd awaiting the presidential motorcade. The image was taken from a balcony at the Adolphus Hotel.

Original black and white photographic negative taken by Dallas Times Herald staff photographer Eamon Kennedy. This image shows two unidentified women outside of Parkland Hospital reacting to news of President Kennedy's death.