45-year-old Stephen attempted to kill his parents and nephew in a car crash. After the plan failed, the ruthless killer mercilessly executed his elderly parents with a shot gun.
Rapist Arthur Hutchinson escaped from police custody in October 1983. Whilst on the run, he broke into the Laitners' house in Dore, Yorkshire and murdered three family members.
16-year-old Becky Watts goes missing and is found dead a few days later, murdered by her own step-brother.
John Sweeney killed two of his former girlfriends and then dumped their dismembered bodies in canals in Rotterdam and London. He was sentenced in 2011 and was given a whole life tariff.
John Allen and his teenage accomplice carried out the brutal series of shootings that killed ten.
The story of Mark Martin, who murdered three women in his quest to become Nottingham's first serial killer.
In 2007, single mother of three Paige Birgfeld went missing.
Andrew Dawson brutally stabbed his neighbors to death before leaving their bodies in bathtubs full of water and bleach.
In December 1998, Angel Resendiz brutally beat Dr. Claudia Benton to death in her own home. He's suspected of murdering at least nine more people and evaded authorities by using multiple aliases.
Richard Trenton Chase was an American serial killer who brutally murdered six people within a month in the late 70s in California. Chase was given the nickname "The Vampire of Sacramento."
A young criminal plots the deaths of his two elderly landlords in a bid to inherit from their estates.
Goudeau terrorized victims in the Phoenix metro area between August 2005 and June 2006.
Jane Longhurst vanished after making a plan to go swimming with her friend's boyfriend.
The story of the killer who attacked his ex-girlfriend in a jealous frenzy and committed a brutal murder.
In 1999, California handyman Cary Staynor raped and murdered four young women. Obsessed with Big Foot, he became the monster in the woods.
Serial killing partners Leonard Lake and Charles Ng murdered eleven people in California in the 1980s. They had a secret bunker where they raped and killed their prey.
Over a 25-year career of murder, Richard Biegenwald killed at least six people.
In October 2012, Mark Bridger abducted and murdered five-year-old April Jones in Machynlleth, Wales. Evidence found on his laptop led to his conviction.
In April 1997, 27-year-old Rachel McGrath was stabbed to death by an unknown attacker in a car park.
Paul Runge raped and killed seven people in Chicago. Police lacked evidence to arrest him despite suspicions.