Into the Blast: The True Story of D. B. Cooper

November 24, 1971 - A man using the assumed name of 'Dan Cooper' leaped from the aft stairwell of a Boeing 727 jetliner after demanding four parachutes and $200,000 in cash. He was never seen again, and four decades later, he has never been identified - until now.

Kenneth Peter Christiansen, a former World War II paratrooper and later a purser for Northwest Airlines, was the man who pulled off one of the boldest unsolved crimes in history.

Skipp Porteous of Sherlock Investigations, New …