December 2000: 19-year-old Rachel Manning was murdered in Milton Keynes.
Attacking in broad daylight, the 'M25 Rapist' became synonymous with fear.
The Pittsburgh Police Force & the FBI raced against time to locate a missing 13-year-old.
When the body of a child is found, Boston State Police have no leads.
Edinburgh, October 1977: Christine Eadie and Helen Scott vanish without a trace.
Digital forensics and a good old fashioned stake out stop a killer in his tracks.
When women start to go missing, the city of Baton Rouge goes into lock-down.
Just as Baton Rouge starts to feel safe they discover a second serial killer is at work.
The body of EastEnders actress Gemma McCluskie was discovered in the Regent's Canal.
Tracie Andrews purportedly witnessed the murder of her boyfriend.
A young couple are found executed in their home with no apparent leads
A box containing human limbs was discovered in Florida.
The bludgeoned body of Paul Gault is discovered in a pool of blood in his bedroom.
David Jackson left his home to buy beer and cigarettes. He was never seen again.
The murder of Lynette led to the longest murder trial in British history at the time.
South Wales Police search for their first documented serial killer.
Rachel O'Reilly was savagely murdered in her home.
Janet Commins is savagely murdered. 40 years later, DNA profiling catches the killer.
Body parts are ound in a Dublin city canal.
The mutilated bodies of two women sparked a massive police manhunt.
The murder investigation surrounding the death of a young, defenceless woman.
A murder sparks a manhunt which lasted nearly three decades.
A popular, healthy, 60-year-old woman suffered a sudden, painful death.
A killer, who stalked and gained his victim's trust, enticed her to her death.
Beverly Therrien and her two lodgers were found beaten to death.