Some conspiracy theories fly under the radar. Some explode in our faces, grabbing the attention of millions. Others calmly ask to speak to the airplane’s captain, extort the airline for $200,000, and then parachute to safety and anonymity somewhere over the Pacific Northwest.

In the forty-plus years since the infamous hijacking – during which no one has gotten even remotely close to figuring out the true identity or whereabouts of the man known only as DB Cooper – a lot of theories have been spun. Was the CIA involved in staging the hijacking as a means of putting pressure on legislators and airline companies to take drastic new airport security measures? What about groups like Air America or Evergreen International – alleged CIA cutouts with ties to Nixon and the White House Plumbers?

In the New York Times Bestselling account, Skyjack: The Hunt for D. B. Cooper, author Geoffrey Gray looks at the case from every possible angle. As the first journalist with access to the FBI’s confidential files on Cooper, Gray uncovers the extraordinary measures taken by the Federal government to find the hijacker (including multiple reconnaissance flights involving the SR-71 Blackbird, and extensive collaboration between the FBI and CIA on the case), and interviews hundreds of personnel involved in the original hunt. Skyjack is a book that raises just as many questions as it sets out to answer, and is a great read for any lover of cold-case crimes and cover-ups.