Original black and white photographic negative taken by Dallas Times Herald staff photographer William Allen. This image shows President Kennedy shaking hands with the crowd at the end of his speech in the the parking lot of the Hotel Texas in Fort Worth 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 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 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 Governor John Connally standing in front of mounted Tarrant County deputy sheriff Raymond "Sonny" Fisher outside the Hotel Texas in Fort Worth 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 Tarrant County deputy sheriff Raymond "Sonny" Fisher atop his horse greeting Governor John Connally outside the Hotel Texas in Fort Worth 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 three men (front to back, Harold Doyle, John Gedney, and Gus Abrams, who is hidden behind John Gedney) being escorted to the Sheriff's office by Dallas Police officers, Billy Bass in the front and Marvin Wise in the rear, on November 22, 1963, about 90 minutes after the assassination.

Original black and white photographic negative taken by Dallas Times Herald staff photographer William Allen. This image shows three men (front to back, Harold Doyle, John Gedney, and Gus Abrams) being escorted to the Sheriff's office by Dallas Police officers, Billy Bass in the front and Marvin Wise in the rear, on November 22, 1963, about 90 minutes after the assassination. The Texas School Book Depository is visible in the background.

Original black and white photographic negative taken by Dallas Times Herald staff photographer William Allen. This image shows three men (front to back, Harold Doyle, John Gedney, and Gus Abrams who is hidden behind Gedney) being escorted to the Sheriff's office by Dallas Police officers, Billy Bass in the front and Marvin Wise in the rear, on November 22, 1963. The Texas School Book Depository is visible in the background.

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 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.

Newspaper clipping discussing a culture of spending a day in Dealey Plaza where "conspiracy nuts" will be offering photographs, newspapers or books on the latest theories revolving around the assassination of former President John F. Kennedy.