True Crime Files

James Fairweather is Britain's youngest serial killer.

September18th 2012, PC's Fiona Bone and Nicola Hughes met with a cold-blooded killer Dale Cregan who had laid a trap for the unarmed officers, with a bogus call out, and killed both officers.

When Catherine Nevin reported a violent attack which left her husband dead, it was initially seen as a robbery gone wrong. But as detectives dug deeper, they discovered a dark side to Catherine.

In April 2004, Melanie and Bill McGuire, married five years with two sons, planned to move to a new home. Instead, Bill was found shot, dismembered, and discarded in a suitcase.

What possesses a child to kill another child?

From 1975 and 1980, Billy Mansfield Jr murdered at least five people, but investigators suspect the extent of his serial killing is still to be revealed.

In December 2006, five sex workers were found dead in Ipswich. Jade Reynolds, working in the area, realized the killer, Steve Wright, was one of her clients.

In 2013, jeweler Michael Griffiths, 59, was found tied up and dead in his burning Sussex home. Discover how a tip led police to his killers, uncovering that his torture and death were in vain.

In July 1994, 27-year-old Julie Clayton's disfigured body was found, leaving police struggling to identify her. They turned to Vogue magazine technology with remarkable results.