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Sororicide is the act of killing one's own sister. The term is Latin in origin, stemming from a combination of the Latin words Soror (Sister) and Cide (To Cut/To Kill). There are as many 7-9 cases of Sororicide dating as far back as 57 BC.

On Criminal Minds[]

Sororicidal killers featured on the show.

Real-World[]

Real-world Sororicidal killers

Further Readings[]

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