Mark of a Killer (2019)
- Genre: Documentary, Crime
- First Air Date: 2019-01-20
- Last Air Date: 2022-04-23
- Total Seasons: 4
- Total Episodes: 34
- Status: Returning Series
- Episode Runtime: 43 min.
- Production Country: United States of America
All serial killers commit murder to satisfy their grand fantasies, but the murderers featured in this true-crime docuseries take it one step further, committing heinous acts that allow them to extend their fantasies and relive the excitement of their crimes again and again.
You can now watch Mark of a Killer online on the following streaming providers in the United States.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | Posed to Kill | 2019-01-20 | 60 min |
| Season 1 | Episode 2 | The Last Call Killer | 2019-01-27 | 60 min |
| Season 1 | Episode 3 | An Eye for Murder | 2019-02-10 | 60 min |
| Season 1 | Episode 4 | Pattern of Murder | 2019-02-17 | 60 min |
| Season 1 | Episode 5 | Momentos of Murder | 2019-02-24 | 60 min |
| Season 1 | Episode 6 | An Appetite for Murder | 2019-03-03 | 60 min |
| Season 2 | Episode 1 | Killer Caller | 2020-04-09 | 60 min |
| Season 2 | Episode 2 | Deadly Summer | 2020-04-16 | 60 min |
| Season 2 | Episode 3 | Deadly Design | 2020-04-23 | 60 min |
| Season 2 | Episode 4 | The Other Zodiac | 2020-04-30 | 60 min |
| Season 2 | Episode 5 | The Smell of Death | 2020-05-07 | 60 min |
| Season 2 | Episode 6 | Hunted to Death | 2020-05-16 | 60 min |
| Season 2 | Episode 7 | Collar and Leash Killer | 2020-05-23 | 60 min |
| Season 2 | Episode 8 | Killer Athlete | 2020-05-30 | 60 min |
| Season 2 | Episode 9 | Bound to Kill | 2020-06-06 | 60 min |
| Season 2 | Episode 10 | Keys to a Killer | 2020-06-13 | 60 min |
| Season 3 | Episode 1 | The I-40 Killer | 2021-04-12 | 60 min |
| Season 3 | Episode 2 | The I-95 Killer | 2021-04-13 | 60 min |
| Season 3 | Episode 3 | The Charmer | 2021-04-14 | 60 min |
| Season 3 | Episode 4 | The Englewood Killer | 2021-04-15 | 60 min |
| Season 3 | Episode 5 | Classified to Kill | 2021-04-16 | 60 min |
| Season 3 | Episode 6 | The Interstate Killer | 2021-10-17 | 60 min |
| Season 3 | Episode 7 | The Grim Sleeper | 2021-10-24 | 60 min |
| Season 3 | Episode 8 | The Tourniquet Killer | 2021-10-31 | 60 min |
| Season 3 | Episode 9 | Deaths in the Desert | 2021-10-31 | 60 min |
| Season 3 | Episode 10 | Summer of Fear | 2021-11-07 | 60 min |
| Season 3 | Episode 11 | The Monster | 2022-04-02 | 60 min |
| Season 3 | Episode 12 | The Bayou Strangler | 2022-04-09 | 60 min |
| Season 3 | Episode 13 | The Skull Crusher | 2022-04-16 | 60 min |
| Season 3 | Episode 14 | The D.C. Sniper | 2022-04-23 | 60 min |