6.76 avg 8 episodes 6.4 → 6.6 44 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Fritz Honka | 6.4 | 34 |
| 2 | Joachim Kroll | 6.9 | 35 |
| 3 | Volker Eckert | 6.4 | 32 |
| 4 | Marc Dutroux | 6.6 | 35 |
| 5 | John Wayne Gacy | 6.9 | 39 |
| 6 | Jeffrey Dahmer | 7.1 | 44 |
| 7 | Ed Gein | 7.2 | 50 |
| 8 | Thierry Paulin | 6.6 | 30 |
6.73 avg 10 episodes 6.9 → 6.6 43 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Edmund Kemper | 6.9 | 35 |
| 2 | Richard Ramirez | 7.4 | 33 |
| 3 | Dorothea Puente | 6.3 | 32 |
| 4 | Charles Ng and Leonard Lake | 6.8 | 33 |
| 5 | Cary Stayner | 6.5 | 32 |
| 6 | Rodney Alcala | 6.9 | 34 |
| 7 | Horst Kröner | 6.5 | 25 |
| 8 | Wolfgang Schmidt | 6.6 | 28 |
| 9 | Jack Unterweger | 6.8 | 26 |
| 10 | Pawel Tuchlin | 6.6 | 23 |
6.80 avg 10 episodes 7.5 → 6.6 60 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Ted Bundy | 7.5 | 35 |
| 2 | Aileen Wuornos | 6.4 | 29 |
| 3 | Bobby Joe Long | 6.7 | 25 |
| 4 | Gary Ridgway | 7.1 | 31 |
| 5 | Dennis Rader - BTK | 7.1 | 32 |
| 6 | Diane Downs | 6.6 | 36 |
| 7 | Robert Berdella (Kansas City Butcher) | 6.7 | 30 |
| 8 | Robert Lee Yates | 6.2 | 26 |
| 9 | Danny Rolling | 7.1 | 29 |
| 10 | Karol Kot | 6.6 | 27 |
6.71 avg 10 episodes 6.8 → 6.5 44 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Todd Kohlhepp | 6.8 | 23 |
| 2 | David Berkowitz | 7.0 | 23 |
| 3 | Robert Ben Rhoades | 6.3 | 25 |
| 4 | Bill Suff | 6.6 | 25 |
| 5 | Christopher Hightower | 6.4 | 25 |
| 6 | Sante & Kenneth Kimes | 6.8 | 23 |
| 7 | Richard Chase - The Vampire of Sacramento | 7.2 | 22 |
| 8 | Angel Maturino Resendiz | 6.3 | 21 |
| 9 | The Hillside Stranglers - Kenneth Bianchi and Angelo Buono | 7.2 | 20 |
| 10 | Daniel Lee Siebert | 6.5 | 20 |
6.54 avg 10 episodes 5.9 → 6.6 44 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Lonnie Franklin: The Grim Sleeper | 5.9 | 14 |
| 2 | William Bonin: The Freeway Killer | 6.5 | 17 |
| 3 | Jerry Brudos: The Shoe Fetish Killer | 7.1 | 17 |
| 4 | Keith Jesperson: The Happy Face Killer | 6.0 | 12 |
| 5 | Arthur Shawcross: The Genesee River Killer | 6.3 | 16 |
| 6 | Clark and Bundy - The Sunset Strip Killers | 7.3 | 17 |
| 7 | Patrick Kearney: The Trash Bag Killer | 6.7 | 15 |
| 8 | Dayton Leroy Rogers: The Molalla Forrest Killer | 6.7 | 14 |
| 9 | Richard Roszkowski | 6.3 | 14 |
| 10 | Cesar Barone | 6.6 | 16 |
6.69 avg 10 episodes 7.4 → 6.9 45 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | John Allen Muhammad & Lee Malvo | 7.4 | 15 |
| 2 | Robert Pickton | 6.3 | 13 |
| 3 | Sean Vincent Gillis | 6.8 | 12 |
| 4 | Don Miller | 5.9 | 14 |
| 5 | Judy Buenoano | 6.7 | 14 |
| 6 | Gary Ray Bowles | 6.2 | 14 |
| 7 | Derrick Todd Lee | 7.2 | 13 |
| 8 | Velma Barfield | 6.6 | 14 |
| 9 | Chester Turner | 6.9 | 11 |
| 10 | Genene Jones | 6.9 | 13 |
6.54 avg 10 episodes 6.3 → 6.6 44 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Jorge Avila-Torrez | 6.3 | 7 |
| 2 | Robert Hansen | 7.2 | 14 |
| 3 | Heriberto Seda | 6.3 | 10 |
| 4 | Charles Albright | 6.1 | 8 |
| 5 | Joshua Wade | 6.0 | 11 |
| 6 | Anthony Allen Shore | 6.7 | 10 |
| 7 | Mark Goudeau | 7.0 | 11 |
| 8 | Paul Runge | 6.6 | 13 |
| 9 | Ronald Dominique | 6.6 | 9 |
| 10 | Paul Michael Stephani | 6.6 | 11 |
7.08 avg 10 episodes 6.6 → 6.9 44 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Lester Jones | 6.6 | 7 |
| 2 | Jerald Wingeart | 6.9 | 10 |
| 3 | John Eric Armstrong | 7.1 | 11 |
| 4 | Richard Biegenwald | 7.7 | 10 |
| 5 | Richard Kuklinski | 7.3 | 11 |
| 6 | Richard Paul White | 6.3 | 9 |
| 7 | Billy Mansfield | 7.2 | 11 |
| 8 | Randy Kraft | 7.2 | 12 |
| 9 | Wayne Adam Ford | 7.6 | 9 |
| 10 | Steven Dean Gordon | 6.9 | 9 |
7.51 avg 7 episodes 7.2 → 8.4
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Glen McCurley | 7.2 | 5 |
| 2 | William Devin Howell | 6.0 | 6 |
| 3 | Michael Bruce Ross | 7.2 | 6 |
| 4 | Donald Henry Gaskins | 8.3 | 7 |
| 5 | Wayne Williams | 7.6 | 5 |
| 6 | David Marmolejo | 7.9 | 7 |
| 10 | Charles Cullen | 8.4 | 5 |
