- 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…Robert Graysmith was on staff at the San Francisco Chronicle in 1969 when Zodiac first struck, triggering in the resolute reporter an unrelenting obsession with seeing the hooded killer brought to justice. In this gripping account of Zodiac’s eleven-month reign of terror, Graysmith reveals hundreds of facts previously unreleased, including the complete text of the killer’s letters.