- Oxygen Network
The Mark of a Killer
- 2019 – 2020
- Returning Series
- Crime · Documentary
- ~40m / ep
- 2 seasons
Latest: Season 2 · 2020
View all seasonsE1. Episode 1
Apr 9, 2020 · 41m
E2. Episode 2
Apr 16, 2020 · 42m
E3. Episode 3
Apr 23, 2020 · 42m
E4. Episode 4
Apr 30, 2020 · 42m
