When did Killer Siblings Season 3 Episode 1 air?
Killer Siblings Season 3 Episode 1 aired on December 3, 2021.


Exploring the psychology and past of cold-blooded siblings who have carried out vicious murders.
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.
Direct answers for episode-level questions and details.
Killer Siblings Season 3 Episode 1 aired on December 3, 2021.
This episode runs for approximately 44 minutes.
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