The book, For the Thrill of It, by Simon Baatz, is described by reviewer Joseph Epstein as ". . . impressive in its research, even-handed in its tone and immensely readable." Loeb and Leopold were defended from receiving the death penalty by Clarence Darrow.
The world is a mix of predators, like Leopold and Loeb, and butterflies, like the one pictured above, found hanging out in a street-side garden.