An Unexpected Killer
2019•TV-14•3 Seasons•48 Episodes•8.0•Returning Series
DocumentaryCrime
A wild and unpredictable journey into homicide investigations where the true identity of the killer comes as a shocking surprise. Combining unparalleled access, captivating interviews and stylish reenactments, each investigation starts in a familiar way - examining the crime scene, interviewing potential suspects… but then something unexpected changes everything. A new witness, an overlooked piece of evidence or even an innovation in forensic science sends investigators on a totally unexpected path that ultimately leads to the conviction of the real killer.
Network
Oxygen
Origin
US
Episodes
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How I Caught My Killer
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Cold Case Files
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The Jinx
2015
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Death of the Pastor's Wife
2026
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The Idaho Murders: College Nightmare
2026
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The Killing Season
2016
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Crime Scene: The Texas Killing Fields
2022
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Conversations with a Killer: The Jeffrey Dahmer Tapes
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Evil Lives Here
2016
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Trust Me: The False Prophet
2026
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The Yogurt Shop Murders
2025
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I AM A KILLER
2018
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Evil Genius
2018
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Heist
2021
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