World's Most Evil Killers

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 one of the most prolific serial killers in Canadian history, dubbed 'The Pig Farmer Killer' by the media.

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

The story of a killer so evil that not even her own son could escape her clutches. She became the first woman to be executed in Florida since 1848.

The story of a terrifying killer who snatched away the lives of four victims before being caught while trying to claim his fifth.

The story of the I-95 killer, who brutally killed six men in 1994 before being executed three years later.

The story of The Baton Rogue Serial Killer, known for murdering seven women in the area and sentenced to death for his chilling crimes.

She became the first woman to be executed by lethal injection after taking six lives. What drove her to commit these callous murders?

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

The chilling story of the serial killer who worked as a nurse in Texas, where she killed many children and infants by injecting them with drugs.