Killer Unknown
Crime
The Tulsa County Sheriff's Office Cold Case Task Force cracks open the 31 unsolved cases of Tulsa County, Okla.
Killer Unknown - Season 1 Episode 1 - Find the Girl
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Killer Unknown - Season 1 Episode 2 - Secrets and Lies
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Killer Unknown - Season 1 Episode 3 - When the Devil Calls
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Killer Unknown - Season 1 Episode 4 - Closing In
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Killer Unknown - Season 1 Episode 5 - Chasing Truth
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