Convicted in 1962 of the arsenic murder of her fourth husband (and linked by investigators to the poisoning deaths of at least three prior husbands and other relatives). Sentenced to life imprisonment. She died in prison in 1965. The case received significant national attention in the early 1960s.
Background
Nancy "Nannie" Hazel Doss (nรฉe Hazel) was an American serial killer known as the "Giggling Granny" for her cheerful demeanor. She was convicted of arsenic poisoning and linked to multiple deaths among her husbands and family members.
Contemporary news coverage of the 1962 investigation, trial, and 1965 death in custody
Oklahoma prison and historical true-crime records
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