Shortly after a dismembered torso was discovered by a pond outside Philadelphia in 1887, investigators homed in on two suspects: Hannah Mary Tabbs, a married, working-class, black woman, and George Wilson, a former neighbor whom Tabbs implicated after her arrest.

As details surrounding the shocking case emerged, both the crime and ensuing trial-which spanned several months-were featured in the national press. The trial brought otherwise taboo subjects such as illicit sex, adultery, and domestic violence in the black community to public attention. At the same time, the mixed race of the...

Shortly after a dismembered torso was discovered by a pond outside Philadelphia in 1887, investigators homed in on two suspects: Hannah Mary Tabbs, a married, working-class, black woman, and George Wilson, a former neighbor whom Tabbs implicated after her arrest.

As details surrounding the shocking case emerged, both the crime and ensuing trial-which spanned several months-were featured in the national press. The trial brought otherwise taboo subjects such as illicit sex, adultery, and domestic violence in the black community to public attention. At the same time, the mixed race of the...