One of the lesser-known members of the James-Younger Gang, he rode with one of the most notorious outlaw organizations of the post-Civil War American frontier through a period of bank and train robberies across the Midwest. His career ended at Northfield, Minnesota, where a botched bank robbery in September 1876 turned into a running gunfight that effectively broke the gang apart. The Northfield raid remains one of the most studied outlaw defeats of the era, and Miller was among the casualties that day.

His criminal record stretched across decades, beginning with the murder of a robbery accomplice in 1963 and continuing after his release with a series of killings targeting young women near a university campus. The pattern — violence, parole, violence again — made him a recurring subject in discussions of recidivism and public safety failures of the era.

Operating across Louisiana for nearly a decade, Dominique preyed on men and boys who were often homeless or marginalized — a factor that contributed to the limited national attention his case received despite the scale of the violence. The relative obscurity of his arrest, even after twenty-three confirmed victims, reflects a pattern seen in other cases where victims belong to communities less likely to generate sustained media coverage or investigative resources.

Operating out of Bristol at the height of Britain's involvement in the Atlantic slave trade, Becher inherited and expanded a family enterprise built on human trafficking, personally overseeing nineteen voyages across nearly three decades. The scale of the operation is documented with precision: 6,205 people were transported from Africa to the Caribbean and American mainland under his ownership, with mortality rates on individual voyages sometimes exceeding 19 percent. His standing within Bristol's merchant community — rising to Master of the Society of Merchant Venturers in 1749 — reflects how thoroughly this commerce was embedded in the city's commercial and civic life.

Puente operated within a structure of care and dependency, turning a boarding house for elderly and mentally disabled tenants into the mechanism of her crimes. The financial motive — collecting Social Security payments from those she had killed — is what drove the pattern of murders across six years, and what ultimately drew investigators' attention. The case remains notable for how thoroughly ordinary circumstances concealed what was happening at the Sacramento property.