FROM SOCIAL OUTCAST TO NECROPHILE AND MURDERER -- HIS APPALLING CRIMES STUNNED AN ERA. <P> <B>San Francisco, the 1920s.</B> In an age when nightmares were relegated to the fiction of Edgar Allan Poe and distant tales of the Whitechapel murders, a real-life monster terrorized America. His acts of butchery have proved him one of history's fiercest madmen. <P> As an infant, Earle Leonard Nelson possessed the power to unsettle his elders. As a child he was unnaturally obsessed with the Bible; before he reached puberty, he had an insatiable, aberrant sex drive. By his teens, even Earle's own family had reason to fear him. But no one in the bone-chilling winter of 1926 could have predicted that his degeneracy would erupt in a sixteen-month frenzy of savage rape, barbaric murder, and unimaginable defilement -- deeds that would become the hallmarks of one of the most notorious fiends of the twentieth century, whose blood-lust would not be equaled until the likes of Henry Lee Lucas, John Wayne Gacy, and Jeffrey Dahmer. <P> Drawing on the "gruesome, awesome, compelling reporting" (Ann Rule) that is his trademark, Harold Schechter takes a dark journey into the mind of an unrepentant sadist -- and brilliantly lays bare the myth of innocence that shrouded a bygone era.