The hundreds of skulls lining the shelves of the Lombroso Museum in Turin were collected by a man who believed they showed the marks of evil. Nineteenth century Italian physician Cesare Lombroso thought criminality was an inherited trait visible in a person’s features, and in an attempt to prove his theory he collected criminals’ remains for analysis. But now some of the descendants of the offenders – whose body parts were taken without permission – want the bones back.