Question: Name the American female serial killer, who after her arrest confessed to 33 murders, and who with only Lydia Sherman and a farmwife in rural Catawissa accused of murdering 17 members of the local community completes the trio of American female serial killers?
Sentence (from "Jane Toppan"): She is quoted as saying that her ambition was "to have killed more people — helpless people — than any other man or woman who ever lived".
Relevant evidence: No