USA TODAY | 'Killers of the Flower Moon': How oil riches led to murder USA TODAY If you're familiar with The New Yorker writer David Grann's brand of investigative journalism, as seen in his outstanding 2009 best seller The Lost City of Z, you already know he is relentless and crazy-thorough in his quests to get to the bottom of ... In The 1920s, A Community Conspired To Kill Native Americans For Their Oil Money Oil wealth, greed, prejudice fueled murders of Osage Indians |