Unusual Suspects - Season 4
1 - Pure Evil
Air Date: September 9, 2012
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
Air Date: September 16, 2012
In Arkansas, three women are murdered over the course of three years.
3 - Wolf in Sheep's Clothing
Air Date: September 23, 2012
The 1995 murder of an 8-year-old girl sparks a manhunt for her killer.
4 - Blood Trail
Air Date: September 30, 2012
The 1999 slaying of a young woman in Germantown, Wis., is recalled.
5 - Mother's Day Murders
Air Date: October 7, 2012
The 1985 murders of a young military wife and two of her daughters are investigated.
6 - Gruesome Discovery
Air Date: October 14, 2012
Recalling the 1994 murder case of a young mother who was beaten and left in a garbage bin.
7 - A Bike Ride to Murder
Air Date: October 21, 2012
The 1991 murder of a young girl in San Diego is investigated.
8 - Murder on the Menu
Air Date: October 28, 2012
The 2004 murder and dismemberment of a chef is investigated.
9 - Triple Threat
Air Date: November 11, 2012
The 1993 strangling death of a young mother in California is probed.
10 - City Under Siege
Air Date: November 18, 2012
A look at the 2006 shooting death of a young nightclub worker in Scottsdale, Ariz.
11 - Killings in Kentucky
Air Date: November 25, 2012
A 1993 triple homicide results in the deaths of a Kentucky veterinarian and his family.
12 - No Mercy
Air Date: December 2, 2012
The 2001 strangling death of a mother of triplets in Puyallup, Wash., is investigated.
13 - Maritime Murder
Air Date: December 9, 2012
The 1982 poisoning death of a naval officer is investigated.