On April 14, 1865 John Wilkes Booth assassinated President Abraham Lincoln at Ford's Theater, or so the history books tell us ... but what if there was a second gunman who actually pulled the trigger?"The Curse of Cain"Like "The Day of the Jackal," "The Eagle has Landed," and "The Key to Rebecca," "The Curse of Cain" is the cat and mouse story of a ruthless professional assassin hired to kill the Union President and the Confederate agent dispatched...