Haunted

E1

A man has recurring nightmares about a murder he witnessed as a youth.

The Steel Town Slayer

E2

A woman finds human remains in a driveway in Hamilton, Ont.

Corridor Killer

E3

An attack on a homeless woman provides clues to the identity of an elusive serial rapist.

The Toy Box Torturer

E4

Recalling the case of a New Mexico man who allegedly kidnapped and tortured women.

Like a Huricane

E5

A seemingly charming new resident of a rural Alabama town is linked to a deadly house fire.

A Wolf Among us

E6

The body of a teenage girl is found in Elkhart, Ind., a week after her disappearance, sparking a manhunt for her killer.

Hunting Humans

E7

A serial killer strikes in rural Northern California.

Trained to Kill

E8

A Seattle doctor is attacked outside his home, and the investigation leads to a violent ex-cop who may be linked to another crime from nine years earlier.

The Bayou Strangler

E9

A serial killer stalks young men in Louisiana.

A Deadly Burning

E10

A serial arsonist is hunted in Washington, D.C.

Captured Alive

E11

A 2011 arson investigation in Texas leads to a widespread hunt for a sexual predator.

A Killer in Disguise

E12

A gunman terrorizes Orange County, Cal.

To Kill and Kill Again

E13

An Indiana nurse becomes suspicious when the death toll at her hospital quadruples over two years.

Last Call Killer

E14

New evidence comes to light in a cold case involving a serial killer who targeted gay men in the early 1990s.

Hell on Wheels

E15

Two Texas teenagers go missing.

911 to Murder

E16

Women begin turning up dead soon after an ex-convict is released from prison.