Fifty years after he became a household name, Chicagoan Jack Ruby continues to baffle historians and millions of American citizens who want to know why he did what he did on Nov. 24, 1963. Americans still reeling from the assassination of President John F. Kennedy watched in horror, live on television, as Ruby fired a shot at point blank range into assassin Lee Harvey Oswald, as he was being transferred from Dallas Police headquarters to the Dallas County Jail. For decades, speculation has swirled over whether Ruby's crime was that of a lone gunman, or part of a more sinister...