October Serial Killer of the Month: Polly Bartlett

This might not even be a true story. Historians differ on whether or not any of this happened. But hey — let’s dive in anyway.

Wyoming resident Polly Bartlett was known as the Murderess of Slaughterhouse Gulch. And that wasn’t because she killed it at Open Mic Night, folks. No, back in the 1860s, before Wyoming was even a state, Polly murdered something like 22 guys who made the horrendous error of staying at her lodge. Polly would use her feminine wiles to lure in wealthy travelers, then poison their food and drink. Then, of great interest to those of you who follow my career, Polly’s father would dispose of the bodies. Hmm… Father/daughter killing team. Someone should get on that.

The two eventually were found out and went on the run. Dear Old Dad was shot dead on October 7…the same day I posted this story in my newsletter! And Polly was put in jail for trial…but then shot dead herself through the bars of her jail cell that very same night.

I guess the family that slays together, stays together?

(This piece comes from my newsletter, which goes out monthly. For more stuff like this, and to get it first, sign up here!)

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Published on October 20, 2025 08:09
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Barry Lyga
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