Shocking Stories of the Most Infamous Unsolved Crimes. Every criminal dreams of committing the perfect crime. A crime that is so well executed, with clues and evidence so scarce, that even the experts are left baffled. The Killer Book of Cold Cases takes you behind the crime scene tape and deep into the investigations of some of the most puzzling and notorious cold cases of all timefrom murders to kidnappings to massive bombings that were open for years before the criminal was finally brought to justice.