World's Most Evil Killers

An account of the German serial killer Fritz Honka, whose insecurities over his height and peculiar sexual habits led to him killing four prostitutes

A profile of Volker Eckert, the German truck driver who used his constant travelling to spread his killing spree across Europe.

Documentary profiling Chicago killer John Wayne Gacy, who was well-liked by his local community, until it emerged he had ended the lives of 33 men in the 1970s.

A profile of Ed Gein, the killer and body-snatcher who came to be known as the `Butcher of Plainfield, and whose story is thought to have inspired Alfred Hitchcocks Psycho.

Serial killer Edmund Kemper killed six women in California and several members of his family.

The story of the "Death House Landlady", who took in elderly and disabled tenants, only to murder them for their social security paychecks

Also known as the Yosemite Park Killer, Cary Stayner murdered four women in 1999 before his capture. Were his actions the result of a tragic childhood?

The disturbing case of 53-year-old German Horst Kroener, who was jailed in 2016 for murdering his Filipina wife in her sleep.

The story of the Austrian serial killer Jack Unterweger, who was heralded as an example of successful rehabilitation, only for him to kill again.

A look at the life - and horrifying crimes - of Ted Bundy, a notorious serial killer who murdered at least 30 young women and girls between 1974 and 1978.

The crimes of serial killer Bobby Joe Long, who abducted and murdered at least 10 women in 1984. He was executed by lethal injection in 2019.

The crimes of the American serial killer Dennis Rader, who murdered 10 people in the Wichita, Kansas area over 17 years and dubbed himself BTK - meaning `Bind, Torture, Kill.

A look at the horrific crimes committed by Kansas City serial killer Robert Berdella, known for kidnapping, raping, torturing and butchering his victims.

A profile of serial killer Danny Rolling, nicknamed the Gainesville Ripper, who targeted Florida students with crimes so horrific that he inspired the movie Scream.

A chilling profile of the serial killer Todd Christopher Kohlhepp, who claimed the lives of at least seven innocent people between 2003 and 2016.

A profile of The Truck Stop Killer, who targeted hitchhikers and truck stop sex workers in a horrific string of crimes spanning 15 years.

A profile of the Rhode Island family man and Sunday school teacher, who also turned out to be a cold-blooded triple murderer.

A profile of the serial killer who took the lives of six victims in one month, known to some as The Vampire Killer due to his penchant for cannibalism.

A look at the lives and crimes of a duo of cousins who, together, took the lives of 10 girls and women aged between 12 and 28.

The Grim Sleeper: The story of the brutal Los Angeles serial killer. Nine innocent women and a teenage girl lost their lives at his hands

The Shoe Fetish Killer: The crimes of Jerry Brudos, whose disturbing shoe fetish played a part in the gruesome murders he carried out on four young women.

The Genesee River Killer: The story of the notorious murderer, whose bloodthirsty murder spree lasted over a decade and claimed over a dozen lives.

Trash Bag Killer: The story of one of the most prolific serial killers in America, with a victim list of at least 25 - the youngest aged just five.

A profile of the triple-murderer who killed his ex-girlfriend, her nine-year-old daughter and another man in a brutal attack.

John Allen and Lee Malvo: The story of the Beltway sniper attacks. John Allen and his teenage accomplice carried out the brutal series of shootings that killed 10.

The story of the serial killer Sean Vincent Gillis, who brutally snatched away the lives of eight innocent women during a decade-long killing spree in Louisiana.

The story of Judy Buenoano, the first woman in Florida to die in the electric chair. She was a killer so evil that her own son became one of her victims.

A profile of Derrick Todd Lee, who murdered seven women in the Baton Rouge area of Louisiana, and was sentenced to death for his chilling crimes.

The story of the cold-blooded serial killer who took the lives of at least fifteen people during a terrifying decade-long murder campaign.

The notorious story of a man convicted of the murder of two young girls, as well as another killing at a military base.

A killer who goaded police and media during his spree, Heriberto Seda claimed to kill based on his victims star signs.

Responsible for five murders, Joshua Wade avoided justice for years and later confessed to killings that started from when he was just 14.

A man who terrorized Phoenix in an extensive year-long crime spree, committing nine murders with no apparent motive.

For nearly a decade, the Bayou Strangler deceived, bound, assaulted and murdered men, as he drifted across South Louisiana.

Mother Paige Birgfeld went missing in 2007 and her remains were found five years later. A decade on, police closed the net on a local mechanic.

In 1999 and 2000, women began disappearing from Detroits thriving areas of prostitution. No one suspected that John Eric Armstrong, a seemingly normal father was actually a killer.

For Richard Kuklinski, crime was his way of life. As a professional murderer, his unusual methods led to a disturbing nickname, The Iceman.

Billy Mansfield Jr murdered at least five victims, but investigators suspect the extent of his serial killing is still to be revealed.

Working as a truck driver, serial killer Wayne Adam Ford strangled and dismembered his victims before dumping their bodies in creeks and rivers

Examining the crimes of Glen McCurley, who in 1974 abducted 17-year-old Carla Walker from a bowling alley car park and killed her before leaving her body in a ditch

An in-depth look at the life and crimes of Michael Bruce Ross who was executed in 2005 after murdering eight women across Connecticut and New York.

From 1979 to 1981, at least 28 children and youths were murdered after vanishing from predominantly Black neighborhoods of Atlanta, sparking terror in the community.

In the 1990s, Bridgeport was a violent place. So when several woman were found murdered, the deaths were never linked. A decade later, a cold case team made a startling connection.

In 1993, police officers pulled over a young man for erratic driving. Within the car, they found the body of a murdered woman.