Forensics: Catching the Killer

An examination of the crimes of John Cooper, a Pembrokeshire farm labourer who won a fortune in a Spot the Ball competition and took to a life of drink, gambling and violence to sustain his lifestyle. By the time he was apprehended in 2009, he had murdered at least four people and left a trail of rape and burglary behind him that saw him given a whole life order.

When the body of eight-year-old Sarah Payne was found in 2000, police utilised the help of forensic scientists to catch her killer.

Carol Park's body was pulled from a lake more than 20 years after she vanished - and the key to solving the case lay in unique forensics.

The murder of 15 year-old Paige Doherty sends shock waves through Clydebank - and the key to finding her killer lies in the local Deli.

Lynette White's murder led to one of Britain's most infamous miscarriages of justice and an exhaustive forensic investigation.

A look at the spree killing in Birmingham in November of 2000 where pub worker Philip Smith killed three women, mutiliating them almost beyond recognition.