We all have them, and some of us leave them behind. FINGERPRINTS. They're said to be as unique as each individual--and no two are alike. A new book "FINGERPRINTS--The Origins of Crime Detection and the Murder Case That Launched Forensic Science" examines the early days of using fingerprints to catch criminals. Colin Beavan's book opens with a description of the 1905 murder of two London shopkeepers. Beavan says the case marked the first time investigators used fingerprints found at the crime scene to identify the killers.