Is killers of the flower moon a true story? Yes. The narrative told in the bestselling book and the acclaimed film is rooted in documented events that unfolded in Osage County, Oklahoma, during the early 1920s, when a wave of calculated murders targeted members of the Osage Nation for control of their oil wealth. These … Continue reading Is Killers of the Flower Moon a True Story? The Verified History Behind the Osage Murders