Suspected serial poisoner executed

March 24, 1873 Durham, England Mary Ann Cotton (34, pictured) is executed for the murder of her stepson Cotton, who eventually was given the nickname “The Dark Angel,” had a streak of suspicious deaths following her, including three husbands, her mother, a lodger, and twelve children (either her own or her stepchildren). The deaths in…

Mass-poisoner executed

February 26, 1852* Rennes, France Hélène Jégado is executed for murder * Note: the exact date of Jégado’s execution seems to be up for debate, with sources claiming either February 26 or 27, 1852, March 1852, or December 1851. For this entry, I chose to use the date listed in Fatal Violence: Case Studies and…