Duration
60 minutes
Series Info
Season 9 Episode 4
Quick Summary
Mary Ann Cotton is often classed as Britain's worst female serial killer.
About This Program
Despite only being trialled and convicted for the death of a single victim, Mary Ann Cotton is often classed as Britain's worst female serial killer.
Murder by the Sea broadcasts on True Crime Xtra at 3:00pm, Monday, 15 December 2025.
Channel Numbers:
Freeview68Sky HD731Sky147Virgin172