David Grann
The Osage Nation became the wealthiest people per capita in the world, but their newfound fortune triggered a horrific conspiracy of greed, racism, and murder.
The discovery of oil on the Osage reservation brought the tribe unprecedented riches, but it also made them targets for violent opportunists.
A discriminatory legal system forced many Osage individuals to rely on white financial guardians who systematically swindled their assets.
Grann traces a murder plot against Mollie Burkhart's family amid a wider pattern of Osage killings tied to oil wealth; the death toll reached two dozen.