Killer Siblings - Season 3 - Eps 1: Kauffman and McMahan
Tragedy strikes rural Iowa as two women are found murdered in their homes. When a local bank is robbed the same day, investigators connect the crimes to an unfolding crime spree and race to find the killer siblings before they can strike again.
About Killer Siblings

Title: Killer Siblings
First Air Date: 2019-10-27
Last Air Date: 2022-02-18
Status: Returning Series
Rating: 8/10 (from 1 votes)
Language: EN
Seasons: 3
Total Episodes: 32
Network: Oxygen
Genres: Documentary
Production Companies: Unknown
Synopsis
Exploring the psychology and past of cold-blooded siblings who have carried out vicious murders.