About this season
Unusual Suspects is an American documentary television series on Investigation Discovery. The series debuted on June 21, 2010. The series showcases many of the most shocking and difficult cases in law enforcement history, and also sheds light on the investigations that led to the arrest of the culprits.
Episodes (13)
1. Pure Evil
Aired 9 September 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
Aired 16 September 2012
In Arkansas, three women are murdered over the course of three years.
3. Wolf in Sheep's Clothing
Aired 23 September 2012
The 1995 murder of an 8-year-old girl sparks a manhunt for her killer.
4. Blood Trail
Aired 30 September 2012
The 1999 slaying of a young woman in Germantown, Wis., is recalled.
5. Mother's Day Murders
Aired 7 October 2012
The 1985 murders of a young military wife and two of her daughters are investigated.
6. Gruesome Discovery
Aired 14 October 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
Aired 21 October 2012
The 1991 murder of a young girl in San Diego is investigated.
8. Murder on the Menu
Aired 28 October 2012
The 2004 murder and dismemberment of a chef is investigated.
9. Triple Threat
Aired 11 November 2012
The 1993 strangling death of a young mother in California is probed.
10. City Under Siege
Aired 18 November 2012
A look at the 2006 shooting death of a young nightclub worker in Scottsdale, Ariz.
11. Killings in Kentucky
Aired 25 November 2012
A 1993 triple homicide results in the deaths of a Kentucky veterinarian and his family.
12. No Mercy
Aired 2 December 2012
The 2001 strangling death of a mother of triplets in Puyallup, Wash., is investigated.
13. Maritime Murder
Aired 9 December 2012
The 1982 poisoning death of a naval officer is investigated.