Investigator Paul Holes continues to examine the Golden State Killer's murderous attacks in Santa Barbara. Meanwhile, armed with new theories, the citizen sleuths find a lead good enough to submit to the FBI

Ongoing efforts to identify the Golden State Killer. Investigators turned to new DNA technology to help put a face to the nickname

A case in which a 23-year-old man went missing in Beech Island, South Carolina. As his family searched for him, an ominous text message deepened the mystery

A blood-stained bicycle hidden in an Ohio cornfield set the stage for an unspeakable crime. While police raced to find missing 20-year-old student Sierah Joughin, a vicious predator lurked somewhere in the rural, Midwestern countryside

When Vegas showgirl Debbie Flores Narvaez goes missing, investigators wonder if a jealous rival is responsible

Teen mum Cheyenne finds acceptance in a new crowd by moving in with two girls and their boyfriends. But after Cheyenne gets her own beau, distrust leads to death

Buying goods from the comfort of home

Buying goods from the comfort of home

Buying goods from the comfort of home

Buying goods from the comfort of home

A murdered teenager's body mysteriously turns up in the rural Iowa countryside. Will the smallest clue be the key to bringing her killer to justice?

After moving in with her new boyfriend, a woman was shot dead and an engaged couple murdered. Secrets from their pasts were sought to explain their deaths

A case in which the body of a musician was found in an alleyway and a construction worker disappeared on the job. Police searched for clues about these callous murders

How a quiet rural town was rocked when two middle school girls went on a hike and were later found murdered. When police discovered one of the girls may have recorded her killer with her cellphone, the race was on to find the killer

An air force veteran disappeared along with his savings of $206,000. Detectives discovered a woman had been draining his accounts, then uncovered a conspiracy of greed and murder

The family of a student are distressed when they receive a warrant for his arrest. A mother of five vanishes after leaving her house early one morning.

The case of a mother of three gunned down in a church basement and how police found surveillance footage showing a figure in full body armour stalking the building

The so-called Jenner Beach murders of August 2004, in which a young couple was shot to death as they slept on a California beach. Satanic imagery nearby led local deputies on a manhunt, but the case wasn't resolved for 13 years

A 1994 murder at Lake Orion, Michigan. At first, the crime was a mystery, but police exposed a strange and twisted plot that no one saw coming

After newlywed pharmaceutical rep Debbie Ashley was found dead in her car boot, police suspected gang involvement. Later, a stunning confession revealed dark secrets