Season 1
Season 2
Season 3
Season 4
Season 5
Episode
1
- Deadly Forest
Episode
2
- Christmas Mourning
Episode
3
- Burning Fury
Episode
4
- Driven to Murder
Episode
5
- Phantom Predator
Episode
6
- Deathbed
Episode
7
- The Deacon's Demise
Episode
10
- Little Boy Lost
Episode
11
- When Evil Strikes
Episode
12
- The Last Resort
Episode
13
- Dangerous Fortune
Season 6
Episode
1
- Vanished in Reno
Episode
2
- High School Homicide
Episode
3
- Brute Force
Episode
4
- Murder in Room 348
Episode
5
- Wicked Impulse
Episode
6
- Death of Innocence
Episode
7
- Hometown Homicide
Episode
8
- Stone Cold Killer
Episode
9
- Blood in the Water
Episode
10
- Sinister Secret
Episode
11
- Dead End Trail
Episode
12
- Nightclub Nightmare
Episode
13
- Death Comes Calling
Season 7
Episode
1
- Deadly Desire
Episode
2
- Last Dance
Episode
3
- No Good Deed
Episode
4
- Deadly Accusation
Episode
5
- Death and Taxes
Episode
6
- Murder in the Mirror
Episode
7
- An Eye for Murder
Episode
8
- Absent Teacher
Episode
9
- Left Alone
Episode
10
- Flames in Paradise
Episode
11
- Nightmare Field
Episode
12
- Little Girl Gone
Episode
13
- Barefoot Homicide
Season 8
Episode
1
- New Years Evil
Episode
2
- Silent Night
Episode
3
- Ashes To Ashes
Episode
4
- Vicious Voyeur
Episode
5
- Drive With Danger
Episode
6
- Knives And Lies
Episode
7
- Last Curtain Call
Episode
8
- Murder Down Memory Lane
Episode
9
- Housebound Homicide
Episode
10
- Kill Now, Pay Later
Episode
11
- End of the Line
Episode
12
- Final Lesson
Episode
13
- Stone Cold Fusion
Season 9
Episode
1
- Field of Nightmares
Episode
2
- Snake in the Grass
Episode
3
- Dance With the Devil
Episode
4
- Nightcrawler
Episode
5
- Final Curtain
Episode
6
- Devil Went Down to Georgia
Episode
7
- Terror Under the Moonlight
Episode
8
- Tangled Up in Red
Episode
9
- A Taste for Blood
Episode
10
- Down to the Wire
Episode
11
- Fatal Impact
Episode
12
- Shattered Dreams
Episode
13
- Forget Me Not
Unusual Suspects
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.