The Warren Commission Report: A Study of the JFK Assassination Investigation

Setting the Stage

On November 29, 1963, just one week after the assassination, President Lyndon B. Johnson signed Executive Order 11130, establishing the President’s Commission to investigate the killing of President John F. Kennedy. The seven-member panel, chaired by Chief Justice Earl Warren and including Senator Richard Russell, Senator John Sherman Cooper, Representative Hale Boggs, Representative Gerald Ford, Allen Dulles, and John J. McCloy, faced an unprecedented task: to reconstruct the events of November 22, 1963, in Dallas, Texas, and explain how a sitting president had been gunned down in an open motorcade.

The Commission’s mandate, later strengthened by Senate Joint Resolution 137 (Public Law 88-202), gave it subpoena power and the authority to compel testimony. What followed was a ten-month investigation that would examine over 552 witnesses, review thousands of documents, and produce fifteen volumes of hearings and exhibits alongside the main report.

The Texas Trip: A Political Calculation

President Kennedy’s fatal visit to Dallas had been months in the making. The trip’s origins lay in three converging goals: resolving a bitter factional dispute within the Texas Democratic Party before the 1964 election, providing a fundraising opportunity for a Democratic dinner in Austin, and giving the President a chance to reconnect with voters in a state he had lost to Richard Nixon in 1960.

The trip was arranged at a June 5, 1963 meeting in El Paso between Kennedy, Vice President Lyndon Johnson, and Texas Governor John Connally. Governor Connally was given primary responsibility for planning Texas events, while White House Special Assistant Kenneth O’Donnell coordinated from Washington. The schedule was extended to cover November 21-22, 1963, and plans for a Dallas motorcade were added.

The Secret Service advance work was led by Special Agent Winston G. Lawson, who conducted preliminary planning from November 13 to November 18, 1963, before being joined by Agent David B. Grant. Lawson worked with FBI’s Special Agent in Charge Forrest V. Sorrels of the Dallas field office. The motorcade route, approximately 10 miles from Love Field to the Trade Mart, was designed to maximize public access to the President. It would proceed through suburban Dallas, along Main Street downtown, then turn right onto Houston Street and left onto Elm Street, passing the Texas School Book Depository before reaching the Stemmons Freeway en route to the Trade Mart.

The Trade Mart luncheon was chosen over alternatives like Market Hall (unavailable) and the State Fair Women’s Building (lacking food facilities). Security arrangements at the Trade Mart involved more than 200 law enforcement officers, with detailed protocols for access control, perimeter policing, roof security, and agent deployment. Eight Secret Service agents were assigned to the Trade Mart itself.

November 22, 1963: The Day of the Assassination

Air Force One touched down at Love Field at 11:40 a.m. CST on November 22, 1963. President and Mrs. Kennedy emerged to greet a large crowd, walking along a chain-link fence where supporters had gathered. Vice President Johnson’s Air Force Two had landed five minutes earlier.

The motorcade departed Love Field shortly after 11:50 a.m., traveling at 25-30 miles per hour through Dallas’s western outskirts. The President, who relished direct contact with voters, directed the motorcade to stop twice. The first stop was to shake hands with a man holding a sign requesting it; the second was to greet a Catholic nun and a group of small children. Each stop required Secret Service agents from the followup car to rush forward and shield the President.

As the motorcade entered downtown Dallas and turned from Main onto Houston Street, dense crowds packed the sidewalks. By the time the cars turned onto Elm Street, the crowd had thinned. The President’s open 1961 Lincoln Continental convertible, traveling at approximately 11.2 miles per hour (calculated from the Zapruder film), passed the Texas School Book Depository Building on the northwest corner of Elm and Houston.

At 12:30 p.m. CST, three shots rang out. The first bullet struck President Kennedy in the back of the neck, exiting through the front of his throat and nicking the knot of his necktie. The second bullet struck Texas Governor John Connally in the back, passing through his chest, shattering his fifth rib, exiting below his right nipple, traveling through his right wrist, and causing a superficial wound to his left thigh. The third and fatal bullet struck the President in the back of the right side of his head, causing a massive wound.

Special Agent Clinton J. Hill, riding on the left front running board of the followup car, heard the first shot and saw the President lurch forward. He ran to the presidential limousine, where a second shot approximately five seconds later removed part of the President’s head. Hill pushed Mrs. Kennedy back into the car when she climbed onto the rear bumper, an action the Commission credited with possibly saving her life. Agent Roy H. Kellerman, in the front seat of the presidential car, radioed Parkland Memorial Hospital to expect the President.

The presidential limousine raced the four miles to Parkland Memorial Hospital at speeds estimated up to 70-80 miles per hour. Dr. Charles J. Carrico, a surgical resident, was the first physician to see the President, noting two wounds: a small bullet entry in the front lower neck and an extensive head wound. Dr. Malcolm O. Perry performed a tracheotomy, while other doctors inserted chest tubes and attempted resuscitation. President Kennedy was pronounced dead at 1:00 p.m. by Dr. William Kemp Clark, Director of Neurological Surgery.

Governor Connally survived. He underwent surgery performed by Dr. Robert Shaw, who repaired his damaged lung, and Dr. Charles F. Gregory, who treated his shattered wrist. His wife Nellie, who had pulled him into her lap after the shooting, helped shield him from further harm.

Establishing the Source of the Shots

Even before Lee Harvey Oswald was identified as a suspect, witnesses at the scene and law enforcement began converging on the Texas School Book Depository as the source of the shots. Within minutes, police entered the building, which housed a private textbook distribution company employing about 15 warehouse workers. The sixth floor, where new flooring was being installed, was largely empty of employees during the motorcade.

The investigation of the building quickly produced overwhelming physical evidence. Deputy Sheriff Luke Mooney discovered three spent Western Cartridge Company 6.5-millimeter cartridge cases near the southeast corner window at approximately 1:12 p.m. Deputy Sheriff Eugene Boone and Deputy Constable Seymour Weitzman discovered a bolt-action rifle with a telescopic sight, serial number C2766, hidden between rows of boxes in the northwest corner of the sixth floor at 1:22 p.m. The rifle was later identified as an Italian 6.5-millimeter Model 91/38 Mannlicher-Carcano, with markings including “MADE ITALY,” “CAL. 6.5,” “TERNI,” “ROCCA,” and “1940.”

Nearby, police found a handmade paper bag that had been used to transport the disassembled rifle into the building. Three cartons had been stacked at the window to form an improvised gun rest, with a fourth carton placed on the floor behind them. A person seated on the rear carton could look down Elm Street toward the motorcade route.

The Commission’s analysis of witness testimony from the Dealey Plaza area, combined with physical evidence, ballistics, and photographic analysis, established beyond question that the shots were fired from this window. Howard L. Brennan, a steamfitter who had been watching the motorcade from a concrete wall approximately 120 feet from the window, testified he saw a man fire the last shot before withdrawing from the window. His initial description matched Oswald’s profile. Robert H. Jackson, a Dallas Times Herald photographer, saw a rifle being drawn back into the window after the third shot. Amos Lee Euins, 15 years old, saw a “pipe thing” sticking from the window and watched the man fire twice. Multiple Depository employees on the fifth floor directly below reported hearing shots from above and shell casings ejecting onto the floor.

Photographic evidence provided crucial confirmation. The Abraham Zapruder amateur film, shot at 18.3 frames per second, captured the assassination in its entirety. Additional footage from Orville Nix and Mary Muchmore provided supplementary records. The Muchmore film, recovered after a two-year search, captured the immediate post-shooting reactions of the occupants of the presidential limousine.

The Mannlicher-Carcano: Forensic Identification

The FBI Laboratory, led by firearms identification specialists Robert A. Frazier, Cortlandt Cunningham, and Joseph D. Nicol of the Illinois Bureau of Criminal Identification, conducted exhaustive ballistics analysis. The commission’s analysis rested on seven categories of evidence: eyewitness testimony, damage to the presidential limousine, expert examination of the rifle and cartridge cases, the wounds themselves, wound ballistics tests, examination of the clothing worn by the President and Governor, and motion-picture films.

The nearly whole bullet found on Governor Connally’s stretcher, weighing 158.6 grains, was identified as having been fired from the C2766 Mannlicher-Carcano rifle to the exclusion of all other weapons. Two bullet fragments recovered from the front seat of the presidential limousine, weighing 44.6 and 21.0 grains, were similarly identified. The three spent cartridge cases found on the sixth floor were matched to the same rifle. All identifications were based on microscopic comparison of unique markings left on the bullets and cartridge cases by the rifle’s barrel, breech face, and firing pin.

The Commission’s wound ballistics tests, conducted at Edgewood Arsenal in Maryland by Dr. Alfred G. Olivier, Dr. Arthur J. Dziemian, and Dr. Frederick W. Light Jr., replicated the wounds to President Kennedy and Governor Connally using the actual assassination rifle. The tests established that a single bullet could have passed through the President’s neck and caused all of Governor Connally’s wounds, supporting the controversial “single-bullet theory.”

Governor Connally testified that he believed all his wounds were caused by a single bullet, and his Parkland doctors concurred. The bullet found on his stretcher had lost velocity and was tumbling when it struck his wrist, as evidenced by the larger entry wound and the carrying of cloth fragments into the wound, characteristics inconsistent with a pristine bullet. Dr. Dziemian testified that he found it “probable” a single bullet caused both the President’s neck wound and all of Connally’s wounds.

The Commission concluded that three shots were fired, based on the three cartridge cases found and the physical evidence of bullet fragments. One shot may have missed entirely. The “single-bullet theory” remains the most contested aspect of the Commission’s findings, with critics arguing the wounds are inconsistent with a single bullet trajectory.

Lee Harvey Oswald: The Assassin

The investigation established beyond doubt that Lee Harvey Oswald owned and used the assassination rifle. The Commission’s case rested on an interlocking chain of evidence that the report described as making the conclusion “irrational to dispute.”

Oswald purchased the rifle on March 13, 1963, from Klein’s Sporting Goods Co. in Chicago. Using the alias “A. Hidell,” he ordered a 6.5-millimeter Italian carbine (serial C2766) with a four-power telescopic sight for $19.95, plus $1.50 postage. He paid with a U.S. postal money order for $21.45, signing the order in his own hand. The rifle was shipped to P.O. Box 2915 in Dallas, a box Oswald had rented under his own name on October 9, 1962. The order was delivered on March 20, 1963.

Forensic evidence tied Oswald directly to the weapon. Lieutenant J.C. Day of the Dallas Police lifted a palmprint from the underside of the rifle barrel, near the firing end and approximately 3 inches under the woodstock. Because the wooden foregrip covers this portion of the barrel when the rifle is assembled, the palmprint proved Oswald had handled the rifle while it was disassembled. FBI latent fingerprint supervisor Sebastian F. Latona, with confirmation from New York City Police expert Arthur Mandella and FBI expert Ronald G. Wittmus, identified the print as belonging to Oswald.

FBI special agent Paul M. Stombaugh found cotton fibers on the rifle, trapped in a crevice between the butt plate and wooden stock, that matched the shirt Oswald was wearing when arrested. The fibers, in dark blue, gray-black, and orange-yellow shades, matched Oswald’s shirt in color, shade, and twist.

Two photographs, found in the garage of Ruth Paine at 2515 West Fifth Street in Irving, Texas, showed Oswald holding the Mannlicher-Carcano rifle and wearing a holstered pistol, alongside copies of The Worker and The Militant newspapers. FBI photographic expert Lyndal Shaneyfelt testified that the rifle in the photographs was the same weapon found on the sixth floor, with characteristic features matching. Marina Oswald testified she had taken the photographs with Oswald’s Imperial Reflex camera. The negative of one photograph was also found in the Paine garage, and Shaneyfelt confirmed it had been produced by Oswald’s specific camera.

The morning of November 22, 1963, Oswald brought the disassembled rifle to the Texas School Book Depository concealed in a handmade brown paper bag. He told his coworker Buell Wesley Frazier that he was retrieving “curtain rods” from Irving, a story that proved false. Linnie Mae Randle, Frazier’s sister, had observed Oswald carrying the bulky package from the Paine house to Frazier’s car that morning. The bag, later found on the sixth floor, contained fibers matching the blanket in which the rifle had been stored at the Paine garage.

Within the building, fingerprint and palmprint evidence established Oswald’s presence at the firing window. Three of Oswald’s prints were developed on two of the four cartons near the window, along with a palmprint identified as his right palmprint on the carton placed on the floor. Latona estimated this palmprint was less than three days old; Mandella estimated it was placed within a day or a day and a half of November 22. The handmade paper bag found beside the window bore Oswald’s right palmprint and left index fingerprint, identified through silver nitrate processing.

Eyewitness identification further confirmed Oswald’s role. Brennan, who had provided a description matching Oswald to police within 30 minutes of the assassination, later identified Oswald in a police lineup as the man he had seen at the window. The Commission concluded that Brennan’s initial description, given before he knew Oswald’s identity, was sufficient to identify him, though his later positive identification added weight.

Oswald’s actions after the shooting proved he was the killer. Approximately four minutes after leaving the Depository, Dallas Police Patrolman J.D. Tippit was shot and killed in the Oak Cliff neighborhood. Multiple eyewitnesses identified Oswald as the gunman. Helen Markham, standing at the corner of 10th Street and Patton Avenue, saw the man draw a gun and fire at Tippit, who had stopped to question him. Domingo Benavides heard the shots, saw the officer fall, and watched the gunman empty his weapon and throw shell casings into nearby bushes. Benavides used Tippit’s car radio to report the killing at 1:16 p.m. William Scoggins, a cab driver parked nearby, heard shots and saw a man flee with a gun in hand. Five witnesses identified Oswald in police lineups that evening; six more did so later.

The murder weapon, a .38 caliber Smith & Wesson revolver (serial V510210), was taken from Oswald when he was arrested at the Texas Theatre on West Jefferson Boulevard, after he had entered without paying and the cashier Julia Postal called police. Four cartridge cases from the Tippit scene were matched to Oswald’s revolver, as was a jacket he had worn and discarded during his flight. A fingerprint on a clipboard found in the Depository’s northwest corner on December 2, 1963, further tied Oswald to the area; the clipboard belonged to employee Frankie Kaiser, who identified it as taken by Oswald.

Oswald’s Path to Dallas

The Commission traced Oswald’s life in detail to understand what had led to the assassination. Lee Harvey Oswald was born on October 18, 1939, two months after his father Robert died. His mother Marguerite placed him in the Bethlehem Children’s Home in New Orleans at age three, and he lived in various institutions and with relatives throughout his childhood. In New York City in 1952, his chronic truancy led to his placement at Youth House for psychiatric evaluation. Dr. Renatus Hartogs diagnosed him with “personality pattern disturbance with schizoid features and passive-aggressive tendencies,” describing a tense, withdrawn, emotionally starved boy. Social worker Evelyn Strickman noted his “serious detachment” and sense of being unloved.

Oswald joined the Marines at age 17 in October 1956, qualifying as a sharpshooter with the M-1 rifle. His military career was marked by disciplinary incidents, including a 1957 accidental shooting and two courts-martial, and he developed a growing interest in Marxism. In September 1959, he traveled to the Soviet Union and announced his intention to defect. Soviet authorities permitted him to remain in Minsk, where he worked at a radio factory and received subsidized housing and a monthly allowance. In April 1961, he married Marina Prusakova, a Russian pharmacist.

By early 1962, disillusioned with Soviet life, Oswald sought to return to the United States. After months of bureaucratic negotiations, the Oswalds left the Soviet Union in June 1962, returning to Fort Worth, Texas, with assistance from the Traveler’s Aid Society and a State Department repatriation loan of $435.71. Oswald’s life in the United States was marked by employment difficulties, marital strife, and continued political agitation. He held jobs at Leslie Welding Company and the advertising firm Jaggars-Chiles-Stovall before being fired in April 1963.

In April 1963, Oswald attempted to assassinate retired Major General Edwin A. Walker at his Dallas home, firing a shot that narrowly missed Walker’s head. The Commission concluded Oswald was the shooter based on a note he left Marina before the attempt, photographs found of Walker’s home, ballistics analysis of the recovered bullet, and Marina’s testimony that Oswald confessed to her. The Walker bullet, too mutilated for definitive identification, was found by FBI expert Frazier to share rifling characteristics with the Mannlicher-Carcano, and Nicol concluded there was a “fair probability” it came from the same rifle used in the Kennedy assassination.

Oswald moved to New Orleans in late April 1963, where he created a fictitious “New Orleans chapter” of the Fair Play for Cuba Committee with himself as the only member, using the alias “A.J. Hidell” as the group’s fictional president. He was arrested on August 9, 1963, for a scuffle while distributing pro-Castro leaflets, and appeared on local radio to debate the issue. In September 1963, he traveled to Mexico City, attempting to obtain visas to visit Cuba and the Soviet Union, but was unsuccessful. Cuban Consul Eusebio Azque refused his application, telling him that people like him were “harming the Cuban Revolution.”

Oswald returned to Dallas in early October 1963 and, through the intercession of Ruth Paine, obtained a position as an order filler at the Texas School Book Depository on October 16. He began living separately from his family at a roominghouse at 1026 North Beckley Avenue, registered under the alias “O.H. Lee.” The relationship with his wife Marina had deteriorated sharply, marked by mutual resentment, physical violence, and her refusal to return to live with him.

In his final weeks, Oswald prepared for what the Commission concluded was an act he had likely planned by November 21, 1963 at the latest. On November 21, he made an unannounced visit to the Paine home in Irving, ostensibly to reconcile with Marina, bringing the disassembled rifle concealed in a paper bag. The next morning, he told Marina he was retrieving “curtain rods” from Irving, asked Frazier for a ride to work, and carried the long package into the Depository.

The Killing of Lee Harvey Oswald

Jack Ruby, a 52-year-old Dallas nightclub operator, shot Oswald on November 24, 1963, at 11:21 a.m. in the basement of the Dallas Police and Courts Building, while Oswald was being transferred from the city jail to the county jail. The shooting occurred in full view of television cameras, though Ruby’s actions would not become clear until later in the day.

The Commission conducted an exhaustive investigation of Ruby’s activities in the days surrounding the assassination, examining his movements from November 21 through the morning of November 24. The investigation found that Ruby had no prior connection to Oswald. Ruby’s presence at police headquarters on the morning of November 24 appeared to be coincidental, a product of his close relationships with Dallas police officers and his habit of visiting the building. He had been at the midnight press conference on November 22, at radio station KLIF afterward, and at the Dallas Times-Herald at 4 a.m.

The Commission found that Ruby had acted alone, not as part of any conspiracy. He entered the basement via the Main Street ramp, arriving less than three minutes before the shooting, and fired a single shot from a .38 caliber Colt revolver into Oswald’s abdomen. Oswald was rushed to Parkland Memorial Hospital, the same hospital where President Kennedy had been pronounced dead two days earlier, and was pronounced dead at 1:07 p.m.

Assessing the Lone Assassin Conclusion

The Commission’s most fundamental finding was that Oswald acted alone, with no evidence of conspiracy, either domestic or foreign. The Commission investigated every rumor and allegation of conspiracy, examining Oswald’s activities, writings, and possessions for evidence of espionage or coordination with others. The investigation found no evidence that Oswald was part of any organized group, that he was assisted by any accomplices at the Texas School Book Depository, or that he was directed by any foreign government.

The Commission found no evidence that Oswald was a paid informant or undercover agent for any U.S. federal agency, despite persistent rumors to that effect. FBI Director J. Edgar Hoover, CIA Director John McCone, and senior officials of both agencies testified under oath that Oswald was never employed by their organizations. The Commission reviewed the complete CIA and FBI files on Oswald, which corroborated these statements.

The Commission also found no credible evidence that the Soviet Union or Cuba was involved in the assassination. Secretary of State Dean Rusk testified that he had seen no evidence of Soviet desire to harm Kennedy. The Commission found that Oswald’s attempts to affiliate with political groups, including the Communist Party USA, the Socialist Workers Party, and the Fair Play for Cuba Committee, produced no evidence of conspiracy. The FPC’s national leadership confirmed Oswald’s New Orleans chapter was never authorized.

The Commission addressed the “single-bullet theory” as carefully as possible, acknowledging that confirming which specific shot missed the presidential limousine and its occupants was scientifically impossible. The Commission found the theory probable based on the weight of evidence, but noted the impossibility of definitive proof.

The Commission’s conclusion that Oswald acted alone rested on eight key findings: he owned and possessed the rifle used in the assassination; he brought the rifle into the Depository on November 22; he was present at the window from which the shots were fired; he killed Patrolman Tippit; he resisted arrest by drawing a pistol; he lied to police about substantive matters; he attempted to kill General Walker in April 1963; and he possessed the rifle capability to commit the assassination.

Presidential Protection: Systemic Failures

The Commission’s investigation revealed serious failures in the systems designed to protect the President. The Secret Service’s Protective Research Section (PRS) was woefully inadequate for its mission: a staff of just 12 specialists and 3 clerks processing over 32,000 threat items per year with no automated data processing. PRS maintained 50,000 manually indexed files, but only 400 were reviewed for trip planning, none of which covered the Dallas-Fort Worth area despite the recent hostile reception given to Ambassador Adlai Stevenson in Dallas on October 24, 1963.

The Commission found that Secret Service advance procedures were insufficiently defined and relied on oral instructions to advance agents. Agent Lawson was given no written checklist for the Dallas trip and no specific guidance about potential problems. No prior inspection of buildings along the motorcade route was conducted, a practice the Secret Service considered impractical but which the Commission found unjustifiable given President Kennedy’s own observation that morning that a determined assassin with a high building and telescopic rifle could not be defended against.

The Commission’s most damning finding concerned interagency coordination. Despite FBI Agent James P. Hosty’s knowledge that Oswald was employed at the Texas School Book Depository on the motorcade route, the FBI did not alert the Secret Service. The Commission found that the FBI took an “unduly restrictive view” of its preventive intelligence responsibilities, focusing on direct threats rather than the broader picture of potential danger. FBI guidelines requiring agents to refer threat information to the Secret Service were excessively narrow, and at least some agents misinterpreted them as requiring evidence of a formal conspiracy rather than general threat potential.

The Commission issued 10 formal recommendations to improve presidential protection, including the establishment of a Cabinet-level committee to oversee protective activities, federal criminalization of presidential assassination, expansion of the Secret Service’s personnel and resources, improvement of interagency liaison, establishment of written agreements with other agencies for information sharing, implementation of automatic data processing for threat analysis, formalization of local law enforcement relationships, implementation of building inspection along motorcade routes, and establishment of ethical standards for information collection and presentation.

The Commission acknowledged that no protective procedures could guarantee absolute security, given the varied demands of the presidency and the democratic traditions limiting security restrictions. The first assassination attempt on Andrew Jackson in 1835, Abraham Lincoln in 1865, James Garfield in 1881, and William McKinley in 1901, plus attacks on Theodore Roosevelt in 1912, Franklin Roosevelt in 1933, and Harry Truman in 1950, demonstrated that the office had always carried grave risk. The Commission hoped its recommendations would reduce that risk without infringing on fundamental American liberties.

The Warren Commission’s Enduring Verdict

The Warren Commission Report, published in September 1964, represented the most comprehensive governmental investigation of an American assassination to that date. It concluded that Lee Harvey Oswald acted alone in killing President Kennedy, that Jack Ruby acted alone in killing Oswald, and that neither act was part of any conspiracy, domestic or foreign. The Commission’s 888-page report, supported by 26 volumes of hearings and exhibits, sought to provide the American public with “a full and truthful knowledge of the relevant facts” about the assassination.

The Commission’s conclusions have been debated and challenged for decades, particularly regarding the single-bullet theory and the possibility of additional shooters. Multiple subsequent investigations, including the House Select Committee on Assassinations (1976-1978) which concluded that Kennedy was “probably assassinated as a result of a conspiracy,” have reached different conclusions. The Warren Commission’s work nonetheless remains the foundational official account of the assassination, and its investigative methodology, evidentiary analysis, and institutional recommendations have shaped how the United States understands and responds to presidential violence.

President Kennedy was buried at Arlington National Cemetery on November 25, 1963. The Commission’s report could not bring him back, but it sought to ensure that the American people would know, to the extent humanly possible, how their young president had died, and what might be done to prevent such a tragedy from occurring again. In the end, the Commission delivered not just an account of the past, but a prescription for the future, one that remains relevant as long as the American presidency exists and the dangers that have accompanied it since 1865.