World's Most Evil Killers — Season 6

Aired 19 October 2021 • 45 min

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.

Aired 26 October 2021 • 45 min

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

Aired 2 November 2021 • 46 min

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.

Aired 9 November 2021 • 44 min

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

Aired 16 November 2021 • 44 min

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.

Aired 23 November 2021 • 45 min

Serial killer Gary Ray Bowles, who took the lives of six men in 1994, and became known as the I-95 Killer, as most of his victims lived close to the Interstate 95 highway.

Aired 30 November 2021 • 44 min

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.

Aired 7 December 2021 • 44 min

The story of Velma Barfield, the first woman to be executed by lethal injection after taking six lives.

Aired 14 December 2021 • 45 min

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

Aired 21 December 2021 • 45 min

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.