At the height of the Jazz Age, when Prohibition was turning ordinary citizens into criminals and ordinary criminals into celebrities, America's true crime detective magazines were born. True Detective came first in 1924, and by 1934, when the Great Depression had produced colorful outlaws like Machine Gun Kelly, Bonnie and Clyde, Baby Face Nelson, and John Dillinger, the magazines were so popular cops and robbers alike vied to see themselves on the...