1863. Civil War rages in the East. An unclaimed wealth of natural resources beckons prospectors to the West. Far from and between it all, a gunman stalks the territories on a divine mission to kill American settlers. He would elude governors and armies, bounty hunters and posses, until his demise at the climax of a fierce high-country manhunt. By then, Felipe Espinosa had claimed more than thirty lives to quietly become one of the nation's first serial killers and foreign terrorists.