Unsolved Crimes

Unsolved Crimes examines famous unresolved cases, from that of Jack the Ripper in 1888 to cases in the present, and describes the key theories, evidence, and suspects for each crime. Case accounts look at how police handled each crime, what evidence was uncovered, and, in some instances, what mistakes were made. Although law-enforcement practices and technology have improved in the past century, some crimes continue to puzzle investigators. Still, it may not be too late to answer a few riddles. By reexamining old evidence with modern techniques, police sometimes can breathe new life into a cold case.