Law enforcement officers make their living fighting crime. The death of an officer killed while on duty presents the most heartfelt crisis a department can face. Agencies make it their highest priority to solve the case and bring the murderers to justice. But it is not a perfect world and sometimes, they are not successful. Unsolved: Cold-Case Homicides of Law Enforcement Officers brings attention to this national tragedy. Building on two years of comprehensive nationwide research, Unsolved includes information on each fallen officer, his or her department and in many cases, an in-depth account of the murder. Unsolved is a touching tribute to these courageous law enforcement officers.