Mark of a Killer
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.
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| Created By | ||
|---|---|---|
| Status | Returning Series | |
| Original Name | Mark of a Killer | |
| First Air Date | January 20, 2019 | |
| Last Air Date | April 23, 2022 | |
| Seasons | 4 | |
| Episodes | 34 | |
| Episode Runtime | 43min | |
| Language | English | |
| Original Language | English | |
| Production Countries | United States of America | |
| Production Companies | ||
| Networks | ||
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