15464. Jack Ruby: Conspirator in the Kennedy Assassination. This term paper provides an overview and analysis of Jack Ruby's personal and criminal background, and considers his associations with mobsters and law enforcement officials. The essay considers Ruby's motivations for killing Oswald and examines theorists' view of Ruby's potential role as a co-conspirator. The term paper concludes that Ruby was not part of a larger conspiracy and finds that Ruby's motivations for killing Oswald were linked with his emotional instability. KEYWORDS: jfk president kennedy assassination jack ruby conspiracy lee harvey oswald term paper. APA Style. 16 pages, 35 footnotes, 18 bibliographic sources.