HistorIQly Mysteries

The Sixth Floor

Dallas, the Investigations, and the Disputed Evidence

About this edition 8 chapters · 8,652 words · 35–49 min read

Reading the evidence

Compare particular findings of the official investigations and the evidence behind them. An inconsistency is a question to investigate, not automatic proof of a conspiracy; newly released records also need context rather than interpretation by headline.

History and reconstruction

This account uses reconstructed scenes, atmosphere, and private thoughts. These passages are storytelling, not eyewitness testimony. Dialogue without a traceable source should be read as reconstruction, not as a verbatim historical quotation. The further reading in the EPUB provides context; it is not a citation for every sentence.

Sources for this editorial note

Free EPUB CASE 01-1963 STATUS: DISPUTED
Illustrated cover of The Sixth Floor
Date Nov 22, 1963
Location Dallas, TX
Status DISPUTED
INVESTIGATE

At 12:30 p.m. on November 22, 1963, three rifle shots echoed through Dealey Plaza in Dallas, Texas. President John F. Kennedy was dead within the hour. Within two days, the suspected assassin was also dead — murdered on live television.

The evidence against Oswald, the later conspiracy finding, and the scientific review that challenged its basis.

The Shots

3

The Warren Commission attributed three shots to Oswald. Exact timing depends on the reconstruction; the HSCA's additional-shot evidence was later challenged.

Distance

265 ft

From the sixth-floor window to the presidential limousine at the moment of the fatal shot.

Documents

Records

A large public archive, with further releases in 2025 and January 2026. Publication dates and declassification dates are not always the same.

Investigations

4

Warren Commission, Shaw trial, HSCA and ARRB: different proceedings with different mandates. The ARRB pursued disclosure, not a verdict on the assassination.

The Evidence

Mannlicher-Carcano rifle, Commission Exhibit 139
CE 139 — MANNLICHER-CARCANO

The Murder Weapon

A 6.5mm Mannlicher-Carcano rifle, serial number C2766, purchased by mail order from Klein's Sporting Goods in Chicago under the alias 'A. Hidell.' Oswald's palm print was found on the barrel. Three spent shell casings lay on the floor beside the sixth-floor window.

Commission Exhibit 399, the single bullet
CE 399 — THE MAGIC BULLET

The Single Bullet

Commission Exhibit 399 was recovered in the Parkland stretcher area and matched to the rifle. Its condition and custody became disputed parts of the proposed common-bullet path through Kennedy and Connally.

The sniper's nest on the sixth floor of the Texas School Book Depository
SIXTH FLOOR — BOOK DEPOSITORY

The Sniper's Nest

Boxes near the southeast window formed the firing position identified by investigators. Films, measurements and reconstruction addressed the view toward Elm Street, including the changing obstruction from a tree.

The Assassination That Changed America

1959

The Defector

Oswald travels to the Soviet Union, settles in Minsk and marries Marina. They return to the United States in 1962 after embassy arrangements; the FBI interviews him after his return.

NOV 22

12:30 PM

Three shots ring out as the presidential motorcade passes through Dealey Plaza. Kennedy is struck in the back and the head. Governor Connally is hit. The limousine races to Parkland Memorial Hospital.

1:00 PM

Death

Kennedy is pronounced dead at Parkland at 1 p.m. Johnson takes the oath aboard Air Force One later, at 2:38 p.m., with Jacqueline Kennedy and Lady Bird present.

1:50 PM

Silenced

Oswald is arrested at the Texas Theatre after Officer J.D. Tippit is killed in Oak Cliff. Two days later, Ruby shoots Oswald during a jail transfer.

1964

The Warren Report

The Warren Commission concludes that Oswald fired the fatal shots and finds no evidence of conspiracy. Critics examine its methods and supporting volumes.

1979

Probable Conspiracy

The HSCA finds probable conspiracy, relying chiefly on disputed acoustic evidence. A National Research Council review in 1982 rejects the alleged gunshot identification.

Key Figures

Lee Harvey Oswald booking photo, November 1963
The Accused

Lee Harvey Oswald

Former Marine, Soviet defector, self-proclaimed Marxist. Employed at the Texas School Book Depository. The Warren Commission named him the lone assassin. He denied the killings and called himself a patsy before reporters. Ruby killed him before trial.

Jack Ruby booking photo, November 1963
The Silencer

Jack Ruby

Dallas nightclub owner whose police friendships and criminal contacts were investigated. He killed Oswald in police headquarters. His conviction was reversed on appeal in 1966; he died in 1967 before retrial.

The funeral procession of President John F. Kennedy
The funeral of President John F. Kennedy. November 25, 1963.

The Shadows That Remain

The Warren Commission and HSCA agreed that Oswald fired the shots that struck Kennedy. Their difference over an additional gunman depended heavily on acoustic evidence subsequently rejected by the National Research Council panel.

The National Archives has published a large collection, with further releases in 2025 and January 2026. The remaining questions require specific evidence, not an assumption that every unreleased file conceals a solution.

Get the Full Book

From Dealey Plaza to the Warren Report and later reviews, follow the evidence, the disagreements and the expanding public archive.