Jack Leon Ruby was an American, originally from Chicago, Illinois, who lived in Dallas, Texas where he owned a nightclub. On November 24, 1963, he fatally shot Lee Harvey Oswald who was in police custody after being charged with assassinating U.S. President John F. Kennedy two days earlier. Wikipedia*
On the C-SPAN Networks:
Jack Ruby has one video in the C-SPAN Video Library; the first appearance was a 2013 Interview.