"There was no mention of the murders."
Evil is something we've grown accustomed to in our world, especially in the many worlds we inhabit within the films of Martin Scorsese. But here, in "Killers of the Flower Moon", we truly inhabit an evil unlike anything I've ever seen.
There is no eureka moment for the characters to do what they do. We never see the moment when they realize what they think they must do. It just happens.