When Henry Debosnys arrived in Essex, New York, the sleepy town was unprepared for the string of dark events that trailed the exotic European stranger. Within weeks of his appearance, he had romanced wealthy widow Betsey Wells, charming her friends and children and presenting the picture of an ideal new family at their spur-of-the-moment wedding. Yet when authorities discovered Betsey's mangled body in a nearby forest, Debosnys's image as a caring...