Unusual Suspects

Detectives discuss some of toughest investigations and how justice was served.

Silent Night

S8 E2

After Jaime Lyn Larson is found murdered in her Portland, Ore., apartment on Christmas day, investigators learn the terrifying truth about her killer.

Ashes to Ashes

S8 E3

After an 8-year-old girl is found strangled to death In Ocean Shores, Wash., a local woman is instrumental in helping detectives bring the young victim's killer to justice.

Drive With Danger

S8 E5

After a night out, a beautiful young woman ends up in a shallow grave, and her killer evades police for decades.

Knives and Lies

S8 E6

After a well-liked teenage boy is found stabbed to death in his Salt Lake City home, detectives leave no stone unturned in their quest to solve the murder that rocked this tranquil community.

Last Curtain Call

S8 E7

Like in a scene out of one of his Westerns, a former actor is gunned down in Yuma, Ariz., and police chase down leads across the Southwest until they finally get their man.

Stone Cold Fusion

S8 E13

The leading advocate for the science of cold fusion is beaten to death and investigators theorize about a wide range of suspects, from corporate executives to burglars.

Deadly Desire

S7 E1

Shortly before Thanksgiving, a Philadelphia suburb is rocked by the murder of 67-year-old Alice Hufnagle.

No Good Deed

S7 E3

When a college student is found murdered in his Arlington, Texas, apartment, investigators suspect the kindhearted victim's generosity may have led a killer to his door.

Deadly Accusation

S7 E4

A video tape surfaces after a naval officer is raped and stabbed suggesting the victim may have been silenced to prevent a scandal.

Murder in the Mirror

S7 E6

When a beloved matriarch is found murdered, her friends and neighbors come under suspicion as detectives investigate the first homicide in the small town of Hubbardston, Mich.

An Eye for Murder

S7 E7

A young Navy wife is found raped and strangled to death in her home near the Mayport Naval Station in Jacksonville, Fla.

Barefoot Homicide

S7 E13

Philadelphia investigators bring to light the obsession that drove a suspect to murder student Deborah Wilson, who was found strangled to death in a university computer laboratory without her shoes and socks.

Vanished in Reno

S6 E1

A college student is abducted in the middle of the night.

Brute Force

S6 E3

A young women is found dead in the trunk of her car; searching for her killer unearths a deadly web of secrets.

Murder in Room 348

S6 E4

A business traveler is found dead in a hotel room.

Wicked Impulse

S6 E5

The murder of a longtime resident stuns a town.

Death of Innocence

S6 E6

An 8-year-old boy's body is found.

Hometown Homicide

S6 E7

A businessman comes home to find his wife brutally murdered; investigators close in on a remorseless killer.

Stone Cold Killers

S6 E8

In 2000, Genevieve Tetpon was stabbed and thrown off of a highway; a hidden clue reopens the case.

Blood in the Water

S6 E9

A teen girl is killed in her home in Colorado; while defending herself she leave a clue for investigators.

Nightclub Nightmare

S6 E12

A young woman is found murdered near a nightclub; the search leads investigators into the heart of the night clubs scene and onto the trail of a gruesome killer.

Death Comes Calling

S6 E13

Beloved grandparents are found murdered; the investigators uncover a shocking secret behind the community's first homicide.

Deadly Forest

S5 E1

A popular high school girl is found murdered, and the shocking truth is exposed years later.

Christmas Mourning

S5 E2

Beverly Elder is found dead in her apartment a few day before Christmas.

Burning Fury

S5 E3

A man is found dead in his burnt up apartment; 20 years go by before police close in on the killer.

Driven to Murder

S5 E4

A business man is found dead on a remote stretch of federal land.

Phantom Predator

S5 E5

When a serial rapist targets St. Louis in the 1990s a multi-agency task force exhausts countless leads in its search for the mysterious predator; years later, a concerned citizens helps investigators bring an unlikely culprit to justice.

Deathbed

S5 E6

A postal worker is found murdered in his apartment; 37 years later police find evidence that leads to the killer.

Sin City Slaying

S5 E8

A single mother of three is found brutally stabbed in her home.

Manufacturing Murder

S5 E9

Four bodies are found in a factory all with close ties to company management.

Little Boy Lost

S5 E10

A mother's tireless pursuit for justice in her son's murder leads investigators to find a crucial clue.

When Evil Strikes

S5 E11

A former Marine goes missing from his home.

The Last Resort

S5 E12

A hotel manager is doused with acid in broad daylight.

Dangerous Fortune

S5 E13

A fortuneteller and her daughter are brutally murdered in 2005; a paper trail leads investigators to the culprit.

Pure Evil

S4 E1

The body of a woman from Chicago is found on a highway in Wisconsin.

The Perfect Suspect

S4 E2

Between 1993 and 1996, local detectives are on the trail of a sadistic killer who raped and murdered three women in Arkansas. Investigators discover that nothing is cut and dried in these cases.

Wolf in Sheep's Clothing

S4 E3

8 year old Maria Piceno was abducted near her home in Lemoore, CA. The hunt is on for a vicious kill when her body is recovered.

Blood Trail

S4 E4

The body of Theresa Wesolowski is found with 46 stab wounds; police find clues that help them catch her killer.

Mother's Day Murder

S4 E5

A military wife and her children are murdered in their home.

Gruesome Discovery

S4 E6

A young mother's body is discovered in a 55 gallon trash barrel.

Murder on the Menu

S4 E8

A chefs body is found dismembered in trash bags along a highway.

Triple Threat

S4 E9

A mother of two from California is found strangled in her home.

City Under Siege

S4 E10

A 20 year old woman is walking home from her shift at a night club when she is gunned down.

Killings in Kentucky

S4 E11

A veterinarian and his wife and son are shot to death in their home in Kentucky.

A Monstrous Act

S3 E2

Woman is killed in her apartment; a long list of suspects emerges, but a late night phone call to the victim is the key.

Innocent Bystander

S3 E4

A New York couple is found murdered in a case where there is more than meets the eye; the man is a drug dealer with known enemies, but his girlfriend is as innocent as they come.

Death of an Angel

S3 E8

The case surrounding an 18-year-old's perplexing disappearance reaches a tragic end.

Hotel Homicides

S3 E9

Determined detectives spend years to finally uncover who murdered three women in different Des Moines, Iowa, hotels.

Elemental Murder

S3 E10

A waitress gets a lethal dose of poison and everyone is a suspect; a bizarre sting operation leads to the truth.

Bathtub Killer

S3 E13

Two women are raped, strangled, and drowned in the same Texas apartment complex; three years later a similar case comes to light and a connection is made that leads to the same man.

Never Came Home

S2 E1

A boy sneaks out his bedroom window from a cabin and disappears.

Getting Even

S2 E2

There is no shortage of suspects when Danny Paquette is murdered in his front yard by a long-distance rifle, but the solution is actually closer to home than expected.