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A loving couple takes in a troubled foster child and quickly becomes entwined in a twisted plot that ends in a brutal murder.

A police officer is shot dead at point blank range at the Harris County Courthouse outside Houston, Texas. With no witnesses, can security cameras lead to his killer.

When April Barber was murdered at a remote beauty spot, her husband said he tried to stop the killer and even appealed for help on TV. Experts analyse his deception.

When Laci Peterson went missing, her husband claimed he last saw her before he went fishing - but his secret mistress exposed his lies. Experts examine his behaviour.

Erica Vassell disappears after a party in Clewiston, Florida. When her brutally murdered body is found days later, everyone is left in shock and fear.

When police officers respond to a domestic disturbance, a fleeing suspect fires at them. Fingerprints and an FBI investigation lead to the criminal.

Investigators look into reports of an illegal dog fight and discover three pit bulls urgently needing their help. Plus, a terrified dog is rescued from under a trailer.

Police arrest two conspirators in a plot to kill a woman, but in a dark twist, they accuse the victim's ex-husband of hiring them to kill his ex-wife.

When killers sedate their victims and disguise the crime scene, identifying the true cause of death is hard. What hard evidence is needed to help investigators.

An attempted arrest turns nasty as a suspected thief gets violent with officers and a brazen burglar nearly eludes police in a daring escape attempt.

A carefully organised drug bust catches two suspected dealers off-guard in Burton and a knife amnesty leaves a team of experienced police officers in a state of shock.

Serial Killer. Joanne Dennehy is serving a life prison sentence after murdering three men in Peterborough. Detectives share the intimate details of the investigation.

A decorated marine faces war at home when he falls for a married woman. Suspicion and jealousy plague their affair and it destroys their families and their lives.

Matrice is arrested when she can't pay her restaurant bill; but after cops release her into the night without her car, keys, or cash, she disappears. Where is she.

When an Army veteran vanishes from her apartment, investigators devise a unique surveillance strategy to find her. They uncover disturbing evidence.

In Nottinghamshire, 1983, a 16-year-old girl is found raped and murdered. Decades later, advances in forensic technology enable police to find a DNA match.

Two cousins grow up together in rural Kentucky but have different lives. A 911 call reports a shocking event and tears the families apart.

Alessia Mesquita falls in love with Rashod Newton. But Rashod's unpredictable behaviour forces Alessia to make a decision that will have deadly consequences.

In 2007 in Bethany, Oklahoma, a young pregnant woman goes missing. Police retrace her last steps and unearth more than the secrets she harboured.

Judge Rinder shines a light on Britain's worst crimes with unprecedented access to court records, witness interviews, and dramatic reconstructions.

When the body of Fernando Silva is found, the crime scene reveals little about what caused his death. Will the cameras help police find out what really happened.

A body is found under a kitchen floor, and the homeowners are on the run. After their arrest they have different stories about how the victim died.

When a torso is discovered in a suitcase, police link it to other body parts found nearby. An investigation unearths a gruesome tale of greed and depravity.