From veteran true crime master Harold Schechter comes a unique look into the history of crime told through the dark objects left behind.The false teeth of a female serial killer from 1908, the cut-and-paste confession of the Black Dahlia killer, the newly cracked cipher of the Zodiac killer, the shotgun used in the Clutter family murders, which were made famous by Truman Capote's true crime classic In Cold Blood—these are more than simple artifacts that once belonged to notorious murderers. They are objets of fascination to the legion of true crime obsessives around the world. And not merely for fleeting dark thrills, but because they represent a way to better understand those who we typically label monsters in lieu of learning how they actually became one.