Killers of the Flower Moon: The Osage Murders and the Birth of the FBI is a 2017 nonfiction book by American journalist David Grann about the Osage murders. Time magazine listed it as one of its top ten nonfiction books of 2017. No. 1 on The New York Times Nonfiction best seller list for 6 weeks, from the issue of February 4, 2024 (Doubleday). Wiki link