Jack Ruby
From The Kennedy Assassination Resource
Jacob Rubenstein
Ruby was a local nightclub owner who shot Lee Harvey Oswald. He was known to have connections with mob boss Sam Giancana. There are several accounts that state he and Oswald knew each other, but we have been unable to confirm these.
[edit] Mysterious Death
While in jail, Jack Ruby developed cancer. He claimed he had been injected with cancer cells, and died in 1967.

