As idyllic as eastern Pennsylvania's Lehigh Valley may be, there's an unexpected dark side. Serial killers, mass murderers, violent gangs and outright hit men have all operated here, along with high-profile family killers. Even before these incidents, there were several Indian massacres and some homicides that made forensic history. In these pages Katherine, in collaboration with Northampton County coroner Zachary Lysek, looks at historical and contemporary murders, as well as some not yet solved.
