He pulled off what some deem the crime of the century: skyjacking a commercial jetliner, collecting a ransom of $200,000, parachuting off the aft stairs of the Boeing 727 into the night, and simply disappearing. Since November 1971, "D.B. Cooper"--no one knows his real name or identity--has become a figure of enduring fascination and obsession. The FBI pursued him for over forty years, before closing the case and leaving it unsolved. Unsolved,...