THE DEATHS OF SYBIL BOLTON: Oil, Greed, and Murder on the Osage Reservation

McAuliffe learned that his Osage Indian grandmother, Sybil Bolton, was a victim of the "Osage Reign of Terror", a systematic killing spree in the 1920s when white men descended upon the oil-rich Osage reservation to court, marry, and murder Native women to gain control of their money.