
An in-depth look at some of the world's most dangerous murderers.

When Carol Jarvis disappears, her husband tells friends and family that she's simply gone on a little holiday.

Jane Longhurst vanishes after making a plan to go swimming with her friend's boyfriend.

Jordan Monaghan kills his 24-day-old daughter Ruby on New Year's Day in January 2013.

On the surface, Zahid Zaman portrayed himself as a pillar of the community, but the true story of this cult killer was deeply sinister.