The only unsolved airline hijacking in American history occurred on November 24, 1971. The suspect, a man using the name D.B. Cooper, has remained unidentified since the fateful day when he collected a ransom of $200,000 and parachuted from a rear exit door of the hijacked Boeing 727. The FBI investigation has gone on for 40 years, and the man behind the crime became a legend. Geoffrey Gray’s Skyjack: The Hunt for D.B. Cooper delves into this great American mystery and the tumultuous period in which it occurred. With Nixon in the White House, war raging in Vietnam and social unrest at home, Cooper came to be regarded as something of a Robin Hood-esque figure. The still-perplexing questions about what happened to this shadowy figure when he jumped from the plane will fascinate true-crime fans.