A rare form of serial killer are Black Widows - women who kill their spouses and other family members - usually for financial gain.  Even more rare are Black Widow Sisters.  This week I'll share two stories of sisters who set up murder syndicates for profit.  

#BlackWidowsofLiverpool #BlackWidowsofElSalvador #serialkillers 

Photo: Margaret Higgins and Catherine Flanagan - The Black Widows of Liverpool

www.patreon.com/onceuponacrime 

Several resources were used in the research for this episode including: 

Angela Brabin, The Black Widows of Liverpool: A Chilling Account of Cold-Blooded Murder in Victorian Liverpool. Lancaster:Palatine Books, 2003. 

Marcos Aleman, Chicago Tribune, "He pays to get married and emigrate to the US, then they kill him to collect the insurance," March 31, 2017. 

A woman is discovered to have murdered two of her husbands and hid their bodies in her yard.  

Resources: 

Book: Buried Memories: The Bloody Crimes and Execution of the Texas Black Widow by Irene Pence

Article: CNN.com - "Texas Executes Betty Lou Beets for Husband's Murder", February 24, 2000

Podcasts: 

Southern Fried True Crime:  www.southernfriedtruecrime.com

The Nighttime Podcast: www.nighttimepodcast.com