4 - 1Pure Evil Sep. 09, 2012- 4 - 2The Perfect Suspect Sep. 16, 2012
- 4 - 3Wolf in Sheep's Clothing Sep. 23, 2012
- 4 - 4Blood Trail Sep. 30, 2012
- 4 - 5Mother's Day Murders Oct. 07, 2012
- 4 - 6Gruesome Discovery Oct. 14, 2012
- 4 - 7A Bike Ride to Murder Oct. 21, 2012
- 4 - 8Murder on the Menu Oct. 28, 2012
- 4 - 9Triple Threat Nov. 11, 2012
- 4 - 10City Under Siege Nov. 18, 2012
- 4 - 11Killings in Kentucky Nov. 25, 2012
- 4 - 12No Mercy Dec. 02, 2012
- 4 - 13Maritime Murder Dec. 09, 2012