Is Killer Unknown coming back?
Killer Unknown (2018–2018) — crime on Investigation Discovery
The answer: Concluded December 22, 2018.
Watch on Discovery+ →
1season
6episodes
About Killer Unknown
What happens when some of the finest investigators in the country come out of retirement to put their collective talents and years of experience towards the most notorious cold cases in Tulsa?
Killer Unknown episode schedule
6 aired
Aired · 6
| Date | Ep. | Title |
|---|---|---|
| December 22, 2018 | S1·E6 | To Everything, There Is a Season |
| December 15, 2018 | S1·E5 | Chasing Truth |
| December 8, 2018 | S1·E4 | Closing In |
| December 1, 2018 | S1·E3 | When the Devil Calls |
| November 24, 2018 | S1·E2 | Secrets and Lies |
| November 24, 2018 | S1·E1 | Find the Girl |