Season 4 Episodes
1. Pure Evil
The 1995 death of a Chicago woman whose body was found on a Wisconsin highway is detailed in the Season 4 premiere.
2. The Perfect Suspect
In Arkansas, three women are murdered over the course of three years.
3. Wolf in Sheep's Clothing
The 1995 murder of an 8-year-old girl sparks a manhunt for her killer.
4. Blood Trail
The 1999 slaying of a young woman in Germantown, Wis., is recalled.
5. Mother's Day Murders
The 1985 murders of a young military wife and two of her daughters are investigated.
6. Gruesome Discovery
Recalling the 1994 murder case of a young mother who was beaten and left in a garbage bin.
7. A Bike Ride to Murder
The 1991 murder of a young girl in San Diego is investigated.
8. Murder on the Menu
The 2004 murder and dismemberment of a chef is investigated.
9. Triple Threat
The 1993 strangling death of a young mother in California is probed.
10. City Under Siege
A look at the 2006 shooting death of a young nightclub worker in Scottsdale, Ariz.
11. Killings in Kentucky
A 1993 triple homicide results in the deaths of a Kentucky veterinarian and his family.
12. No Mercy
The 2001 strangling death of a mother of triplets in Puyallup, Wash., is investigated.
13. Maritime Murder
The 1982 poisoning death of a naval officer is investigated.
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