Jacob Leon Rubenstein (March 25, 1911 – January 3, 1967), he later changed his last name to Ruby, operated two nightclubs, the Carousel Club and the Vegas Club in Dallas, Texas, in November 1963. On November 22, 1963, Lee Harvey Oswald was arrested by the Dallas Police as a suspect in the murder of Dallas Police Department patrolman J.D. Tippit. Citing evidence provided by Federal, State, and local agencies, the State of Texas arraigned Oswald 12 hours after his arrest, charging him with the murder of both President Kennedy and Patrolman Tippit.
On November 24, 1963, Ruby fatally shot Lee Harvey Oswald, who was in police custody, in the basement of the Dallas Police Department headquarters building. A Dallas jury found Ruby guilty of murdering Oswald, and Ruby was sentenced to death. Later, Ruby appealed his conviction and death sentence and was granted a new trial. Ill with lung cancer, Ruby died of a pulmonary embolism on January 3, 1967 at Parkland Hospital, where Oswald had died and where President Kennedy had been pronounced dead after his assassination.
The documents contained in these files were photocopied by the Commission from the mass of documents that were created or accumulated by the Commission, to form a segmented collection of documents covering Jack Ruby. Most documents in this vertical file not created by the Commission were created by the FBI. Others documents are from the Secret Service, Department of Defense, Dallas Police Department, and other government agencies. These files cover all aspects of the background and activities of Jack Ruby. The documents include interviews, reports, transcripts of testimony, depositions, affidavits and written statements, memorandums concerning the backgrounds of individuals, administrative papers, letters of notification, transmittals and so forth.
The file folders' subjects/titles include: Activities, Reaction to Assassination, Presence at Police Station, Entrance to Basement of Police Station, Background, Affiliations, Labor Union Activities, Racketeering and Subversive Activities, Associates and Relatives, Association with Oswald, Business and Financial Interests, Income Tax, Familiarity with the Police, Medical and Personal History, Military Service, Police Record, Political Activities, Travel, Ruby's Address Book, Mail and Telegrams, Personal Property, Telephone Calls, Ruby's Revolver, Motive, Witnesses Interviewed, Arrest and Interrogation, Trial, Melvin Belli, Conviction and Subsequent Events.
Created by President Lyndon Johnson's Executive Order 11130 on November 29, 1963, The President's Commission on the Assassination of President Kennedy, commonly called the Warren Commission from the name of its Chairman, Chief Justice of the United States Earl Warren, was given the task of investigating the November 22, 1963 assassination of President John Fitzgerald Kennedy in Dallas, Texas, and the subsequent killing of the alleged assassin Lee Harvey Oswald; to evaluate its findings; and to report its conclusions to the President.