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| Aflevering | Eerste uitzending |
|---|---|
| S04E01 - Pure Evil | 09/09/2012 |
| S04E02 - The Perfect Suspect | 16/09/2012 |
| S04E03 - Wolf in Sheep's Clothing | 23/09/2012 |
| S04E04 - Blood Trail | 30/09/2012 |
| S04E05 - Mother's Day Murders | 07/10/2012 |
| S04E06 - Gruesome Discovery | 14/10/2012 |
| S04E07 - A Bike Ride to Murder | 21/10/2012 |
| S04E08 - Murder on the Menu | 28/10/2012 |
| S04E09 - Triple Threat | 11/11/2012 |
| S04E10 - City Under Siege | 18/11/2012 |
| S04E11 - Killings in Kentucky | 25/11/2012 |
| S04E12 - No Mercy | 02/12/2012 |
| S04E13 - Maritime Murder | 09/12/2012 |