Welcome to a brand new series called Hell Has No Fury... all about women killers. Tonight we talk about a someone who may or may not have been a serial killer. After Stacey Castor's second husband's suspicious death, questions arose around her first husband's death as well. But then, a note from someone else claims responsibility for both, complicating the investigation for a short time.

Music by:Kai Engel"Daemones"
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Sources:

Stacey Castor ‘Black Widow’ Accused in Anti-Freeze Murder at The Insider
Exclusive: Mother and Daughter Face Off in Murder Mystery - ABC News
Death by anti-freeze 'perfect murder'
DA: Antifreeze murderer Stacey Castor, who poisoned husband, dead at 48 - syracuse.com
Did Stacey Castor murder her own father?
Latest news & breaking headlines | The Times and The Sunday Times
Woman Convicted of Poisoning Husband, Harming Daughter | Fox News
Exhumed Body Reveals Stacey Castor's First Husband 'Didn't Just Die' - ABC News
How detectives caught a 'black widow' in her deadly web of lies - ABC News
Stacey Castor | Murderpedia, the encyclopedia of murderers
https://bjs.ojp.gov/content/pub/pdf/wo.pdf