Zodiac By Robert Graysmith New York Times bestselling author Robert Graysmith's investigation of California's unsolved Zodiac murders. A sexual sadist, he took pleasure in torture and murder. His first victims were a teenage couple, stalked and shot dead in a lovers' lane. After another slaying, he sent his first mocking note to authorities, promising he would kill more. The official tally of his victims was six. He claimed thirty-seven dead. The real toll may have reached fifty. Free shipping. Questions contact me