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.
Where to Watch Unusual Suspects
Where to stream every episode from all 9 seasons of Unusual Suspects. Filter these episodes by what's available to watch free or on your streaming services using the tabs above.
Season 1Investigation Discovery | Rent or Buy
S01 E01Jun 1, 2010
The Killer Nearby Jun 1, 2010 A 40-year-old mother disappears from her home in the middle of the night, and police chase multiple leads before coming up empty. Almost a year goes by until they investigate a very unlikely suspect - a high-school neighbor with an affinity for older women. Then, a teenage boy is murdered in his home and detectives believe his campaign against teen gang activity led to his death. But the community is horrified when police arrest one of their "model citizens" for ordering the hit.
S01 E02Jun 22, 2010
Betrayal of Trust Jun 22, 2010 A husband and wife are found shot to death on a deserted stretch of highway. Phone records help detectives uncover a murder-for-hire plot that went horribly wrong, and discover that one of their victims is also their prime suspect. Next, when a 20-year-old woman is found murdered near a freeway exit ramp, the residents of San Diego demand justice. But when a trusted police officer is identified for the crime, the community is shaken to its core.
S01 E03Jun 29, 2010
A Mother's Conviction Jun 29, 2010 A young boy is killed in the middle of the night, and his own mother is convicted of the crime. Years later, an author investigates a convicted murderer for her upcoming novel, and gets a confession that re-opens that case file and eventually, sets the mother free.
S01 E04Jul 6, 2010
Will To Murder Jul 6, 2010 A delivery man guns down an affluent couple, with their only son barely escaping. The investigation reveals a greedy relative with a motive too close to home. And when a recent victim of burglary is found shot to death in her car, the investigation uncovers a killer the victim trusted without question - the police officer who came to her aide.
S01 E05Jul 13, 2010
Murder in Biloxi Jul 13, 2010 A judge and his wife are slain in their home, and the suspects range from common criminals to politicians.
S01 E06Jul 20, 2010
Monster in Spokane Jul 20, 2010 A serial killer on the loose in Spokane prompts investigators to take a new look at an old clue.
Season 2Rent or Buy
S02 E01Aug 15, 2011
Never Came Home Aug 15, 2011 In 1996, teenaged Joey Martin sneaks out of his bedroom window to watch a comet from a cabin in the woods-and disappears. Despite multiple leads, there is no sign of Joey until 2008 when a young detective uncovers the shocking story of Joey's fate.
S02 E02Aug 22, 2011
Getting Even Aug 22, 2011 In 1985 when welder Danny Paquette is killed in his front yard by a long-distance rifle shot, there is no shortage of suspects. Many people had issues with Danny. But ultimately the solution falls much closer to home than anyone expected.
S02 E03Aug 29, 2011
Little Lost Girl Aug 29, 2011 When 10-year-old Katie Collman is murdered in a small Indiana town, a shocking confession catapults this crime into national news. Was Katie murdered to keep her quiet about something she saw? An unusual clue leads investigators to the conclusion.
S02 E04Sep 5, 2011
Who Wanted Them Dead? Sep 5, 2011 In 2004, affluent Coral Gables couple, John & Susan Sutton, are attacked at home. Susan doesn't survive. Investigators look at an adulterous business partner and an angry client before cell phone records lead to a shooter with ties to the family.
S02 E05Sep 12, 2011
Hiding In Plain Sight Sep 12, 2011 FBI office manager Melissa Mooney is found murdered in her home. After taking a hard look at several promising suspects, the case goes cold. Two years later, a reexamination of the case leads to an unlikely killer who was hiding in plain sight.
S02 E06Sep 19, 2011
Terror in the Gulfport Sep 19, 2011 In 1984, terrifying screams pierce the Florida night. A day later, a woman's body is found, stabbed to death. Detective Larry Tosi faces a host of suspects, but when the killer is caught, no one will be more shocked than Tosi himself.