A thrilling account of the creation of the so-called lie detector, exploring shocking murders and dramatic trials to uncover the true nature of the polygraph. This tense true crime story is perfect for fans of American Predator and The Invention of Murder. Late one evening in the summer of 1922, Henry Wilkens burst through the doors of the emergency room covered in his wife's blood. But was he a grieving husband, or a ruthless killer who conspired...
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True Crime