Cold Case Files
The Answer in the Box/Maternal Instinct
TV-MA
S1 • E4 Jan 22, 1999 45m7.4
The murder of Alison Parrott by Francis Carl Roy in Toronto, Ontario, Canada and the poisoning of Seth and Tegan Davis in West Virginia. Mary Beth Davis, their mother, was convicted of poisoning her two children largely on circumstantial evidence.
