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Revealing, like never before, what it is like to be a police officer working on the most incredible and inconceivable murder cases in criminal history. A look into murder cases from the first 999 call, the investigation and then the guilty verdict.
DNA left on a cigarette butt leads investigators to the brutal killer of 84 year-old gun enthusiast Kenneth Speakman.
Police painstakingly trawl through hours of CCTV footage, location data and forensic evidence to find the brutal killer of a heavily pregnant woman.
An unlikely informant holds the key to justice when 59-year-old antique dealer Michael Griffiths is targeted and brutally killed in his home.
A computer at Vogue magazine held the key to identifying Julie Clayton, an ex-cult member who'd been assaulted and murdered upon leaving.
The Canal Murders: It took 18 years to identify Melissa Halstead after her torso was found in a Rotterdam canal. But detectives never stopped working to catch her killer.
A seemingly ordinary family man is the prime suspect when his wife, three young children and mother-in-law are brutally killed after church.
New & Exclusive. A Picture Perfect Family: The FBI investigates when a seemingly perfect husband flees the United States following the murder of his wife and three children.
Two women are killed in the 70s and their cases go cold for over 30 years, until a chilling link between the two emerges.
Detectives look back on the case of Elijah Butler, murdered four days after he married his wife - by her long-term stalker.
Detectives reflect on how they gathered evidence to charge Melanie McGuire with murder when her husband's remains were found in suitcases.