Jack Ruby

Mugshot of Ruby on November 24, 1963, after his arrest
Born: Jacob Leon Rubenstein; c.[1][2] March 25, 1911; Chicago, Illinois, U.S.
Died: January 3, 1967 (aged 55); Dallas, Texas, U.S.
Resting place: Westlawn Cemetery, Norridge, Illinois; 41.958110°N 87.826853°W
Occupation: Nightclub owner
Known for: Murder of Lee Harvey Oswald
Criminal charge: Murder with malice
Criminal penalty: Death (overturned)
Criminal status: Conviction overturned on appeal, died before retrial
Jack Leon Ruby (born
Jacob Leon Rubenstein; c.[1][2] March 25, 1911 January 3, 1967) was an American nightclub owner who murdered Lee Harvey Oswald on November 24, 1963, two days after Oswald assassinated President John F. Kennedy.
Born in Chicago, Ruby operated nightclubs in Texas. On November 24, 1963, two days after President Kennedy was assassinated in Dallas, Ruby shot and mortally wounded Oswald in Dallas Police Headquarters and was immediately arrested. The shooting happened on live television. Ruby was convicted and sentenced to death; this was overturned on appeal, and he was granted a new trial, but Ruby fell ill, was diagnosed with cancer, and died of a pulmonary embolism on January 3, 1967.
In 1964, the Warren Commission concluded that Ruby acted alone in killing Oswald, that Ruby shot Oswald on impulse and in retaliation for the Kennedy assassination. The Commission's findings are supported by all available evidence and Ruby's own testimony.
However, the death of Oswald in police custody so soon after the assassination of Kennedy, sparked unfounded associations between Ruby and the, at the time new, conspiracy theories surrounding the Kennedy assassination.
{snip}
[1] Birth records were not officially kept in Chicago prior to 1915, and among school records, driver's licenses, and arrest records, there were six different dates, ranging from March to June 1911.
[2] The Warren Commission found that various dates were given in the records for Ruby's birth; the one most used by Ruby himself was March 25, 1911. His grave marker has April 25, 1911, as his birthdate.
{snip}