Killer Unknown Episodes

The Tulsa County Sheriff's Office Cold Case Task Force cracks open the 31 unsolved cases of Tulsa County, Okla.

Streaming episode S01E06 Now!

Season 1, Episode 6
Season 1 Ep. 6

Streaming episode S01E05 Now!

Season 1, Episode 5
Season 1 Ep. 5

Streaming episode S01E04 Now!

Closing In
Season 1 Ep. 4

Streaming episode S01E03 Now!

When the Devil Calls
Season 1 Ep. 3

Streaming episode S01E02 Now!

Ep.1 + Ep.2
Season 1 Ep. 2

Streaming episode S01E01 Now!

Ep.1 + Ep.2
Season 1 Ep. 1