[David Grann] The Flower Moon Killer: Osage Murder and the Birth of the FBI (Hardcover) [2018] David Grann (Author) (Hardcover)

In the 1920s, the richest people per capita in the world were members of the Osage Indian tribe of Oklahoma. After oil was discovered under their land, they drove around in chauffeured automobiles and built houses, and sent their children to study in Europe. And then, one by one, the Osage began to be killed. Molly Burkhart, an Osage woman's family, became the number one target. Her relatives were repelled and poisoned. And that was the beginning, many tribe members began to die.