Wars have terrorized entire populations for thousands of years. The American West was home to ruthless killers who were idolized in fiction and folklore. Evil evolved to a hideous new form with the genocidal dictators of the 20th Century such as Hitler, Stalin and Mao Tse Tung who ordered the execution of tens of millions. But in the middle of the 20th Century a new and chilling phenomenon emerged in the post-war Western society: The Serial Killer! As if fashioned from our nightmares, they terrified and fascinated us. Lurking behind masks of bland normality, the serial killer often evaded capture for years, decades or eternity. These are America's Serial Killers!