Air date: 2023-12-04

Runtime: 87 min

The 2002 murders of Holly Wells and Jessica Chapman horrified and shook the nation. Explore how forensic science helped find their killer.

Air date: 2023-12-11

Runtime: 46 min

In 2022, 35-year-old Zara Aleena was beaten to death just ten minutes from her London home, but the only evidence left by her brutal killer was one bloody fingerprint at the crime scene.

Air date: 2023-12-18

Runtime: 45 min

In 1975, 11-year-old schoolgirl Lesley Molseed went to the shops and never returned to her family home in West Yorkshire. The ensuing police investigation led to a tragic miscarriage of justice before DNA evidence identified the true killer.

Air date: 2024-01-08

Runtime: 43 min

Larger-than-life David Morley survived a terrorist bombing in London, only to be beaten to death five years later during a night out in the city.

Air date: 2024-01-15

Runtime: 44 min

Mum Karen Doubleday was found murdered in the woods in 2002. The clue to finding her killer lay in pollen spores from the Ice Age.

Air date: 2024-01-22

Runtime: 45 min

Teenager Naomi Smith went to post a letter for her mother in 1995 and never came back home, but a bite mark left on her body gave police crucial evidence to help reveal her killer.

Air date: 2024-01-29

Runtime: 45 min

After mum Michelle Gunshon disappeared, police found CCTV footage showing her with a mystery man. They managed to track him down, but where was she?

Air date: 2024-02-05

Runtime: 44 min

When mum of three Eileen Jawczak was murdered, clues were minimal. Could police link her death to the Rochdale Ripper?

Air date: 2024-02-12

Runtime: 46 min

Two bodies are found just months apart in Leicestershire, but when the case goes cold, one woman's bravery could be key.