Written in a straightforward, A-to-Z format and featuring 69 black-and-white photographs, The Encyclopedia of Unsolved Crimes, Second Edition presents criminal mysteries from the 19th and 20th centuries, including murders, robberies, missing persons, kidnappings, serial killers, and more. More than 800 cases in total are examined, presenting readers with the facts, evidence, and theories connected with each one. Each entry documents the events of the crime, the victims, the alleged perpetrators, the key points of the police investigation, and the current status of the case. More than 90 new cases have been added for the new edition, and many others have been updated to reflect recent developments.