Killers: Caught on Camera

The case of Becky Bliefnick, who was killed by her husband. Elsewhere, autopsy results revealed that Keeley Bunker was murdered by a friend.

In one case, a killer records himself tampering with the weapon, and in another, phone data exposes betrayal.

The story of Collin Turner, who was tragically killed by his abusive wife while he was on the phone to 911.

In the US, CCTV and forensic evidence led to Jasmine Pace's killer, Jason Chen. In the UK, CCTV exposes Megan Newton's murderer, with blood on his hands.

The story of how CCTV and DNA exposed Bryan Kohberger for the murders of Ethan Chapin, Xana Kernodle, Maddie Mogen and Kaylee Goncalves.

The story of what happened when digital forensics revealed that Colby Vinson's ex persuaded her stepfather to kill Colby.

The story of Angela Craig, who was poisoned to death by her husband putting cyanide in her protein shakes.

The story of Lauren DeWise, who was shot and killed by her abusive husband. This episode also covers the case of Cristina Ortiz-Lozano, who was stabbed to death.

A young UK student is raped and murdered. Surveillance footage traps a serial sex offender. A jazz musician and his new girlfriend are murdered a week apart.

Pregnant Summer Tatum is shot twice by her husband after she discovers his online affair. Businesswoman Andreen McDonald is killed by her husband, Andre, with a hammer.

Two cases of domestic abuse: Patricia Birmingham in the US and Marta Chmielecka in the UK, both killed by their partners, reveal the deadly consequences of toxic relationships.

Kira Steger's murder by her husband and Whitney Gray's fatal road rage shooting reveal the devastating toll of violence both in relationships and on the open road.

A woman is shot in her car by her estranged husband in front of her daughter. In the US, a Vietnam veteran is shot at home by his son over a will dispute.

The murders of Martika Ferguson and Tiffiney Crawford expose the deadly toll of disproportionate revenge.

An abandoned car is found with four bodies inside; in the UK, a woman is murdered by her stalker.

The murder of a couple is caught on camera; in the UK, a long-standing feud turns fatal.

A young woman disappears after meeting up with an old flame; in the UK, a dating app-related murder unfolds.

A spree killer is on the loose in New Mexico; in Colorado, a mother is found dead inside an isolated cabin.

In the U.K., a young woman fails to come home after a date; her worried family desperately searches for her, only to discover a devious attempt at a cover-up; in the U.S., a young mother is found dead in a house fire.

In the US, an elusive killer leaves a trail in blood and phone data.

A man and his accomplice go on a killing spree, leaving four dead. In the UK, a student is stabbed to death.

This episode features a lover's quarrel and a murderer with a lot to hide.

In the US, police search for a missing woman and her money. In the UK, a woman's murder sparks a manhunt.

In the US, a grandmother goes missing. Surveillance footage captures last movements of a missing woman.

In Colorado, a woman is found murdered after a tip-off. In Michigan, a young couple are found dead in a shed.

In Florida, a teen girl is found murdered. In Colorado, a young woman goes missing.

In the UK, a woman is found murdered after reporting stalking. In Texas, a woman is found shot dead outside her home.

In Texas, surveillance catches a killer out. In Washington State, a man's vlogs reveal his dark plans.

In the UK, the dismembered body of a woman leaves a gay couple, obsessed by serial killers, in the frame. In the US, a hidden camera provides vital evidence to help bring justice to a family.

In the United States, a missing 15-year-old is found by cadaver dogs. In the United Kingdom, a mystery needs to be solved in order to identify a dismembered body found in a suitcase.

In the US, a murder in a garage is recorded on camera while police pursue their suspect to the Mexican border. In the UK, a woman is found in her bedroom stabbed 54 times after a night out.

In the US, recordings provide vital evidence to solve the death of a man's wife. While in the UK, a feud leads to a house fire that kills four young children and their mother.

In the United States, a five-year-old boy is found dead after going on a trip to Disneyland with his father, and in the United Kingdom, a parking dispute escalates into a double murder.

Police investigate the disappearance of a 5-year-old boy; a young girl's body is discovered in a field.

A camera hidden in a bag of chocolates solves a murder; a gloating social media post entraps a killer.

A couple are found dismembered in their own home; a woman is found dead after being stalked by a stranger.

A sister tracks down her brother's killer; CCTV is the main witness to identifying the killer of a mother.

A British woman is found dead after a date; a girl is killed to cover up an inappropriate relationship.