Crime
Serial killer behaviors, postmortem rituals, and crime scene souvenirs are examined in Mark of a Killer.
Season 1
| # | Title | Airdate |
|---|---|---|
| 1 | Jan 21, 2019 | |
| 2 | Jan 28, 2019 | |
| 3 | Feb 11, 2019 | |
| 4 | Feb 18, 2019 | |
| 5 | Feb 25, 2019 | |
| 6 | Mar 4, 2019 |
Season 2
| # | Title | Airdate |
|---|---|---|
| 1 | Apr 10, 2020 | |
| 2 | Apr 17, 2020 | |
| 3 | Apr 24, 2020 | |
| 4 | May 1, 2020 | |
| 5 | May 8, 2020 | |
| 6 | May 16, 2020 | |
| 7 | May 23, 2020 | |
| 8 | May 30, 2020 | |
| 9 | Jun 6, 2020 | |
| 10 | Jun 13, 2020 |
Season 3
| # | Title | Airdate |
|---|---|---|
| 1 | Apr 13, 2021 | |
| 2 | Apr 14, 2021 | |
| 3 | Apr 15, 2021 | |
| 4 | Apr 16, 2021 | |
| 5 | Apr 17, 2021 | |
| 6 | Oct 17, 2021 | |
| 7 | Oct 24, 2021 | |
| 8 | Oct 31, 2021 | |
| 9 | Nov 1, 2021 | |
| 10 | Nov 8, 2021 | |
| 11 | Apr 3, 2022 | |
| 12 | Apr 10, 2022 | |
| 13 | Apr 17, 2022 | |
| 14 | Apr 24, 2022 |