World's Most Evil Killers, The Kansas City Butcher

S3 E1 • 43m • HDTV14

A profile of Karol Kot, who killed an 11-year-old boy and an 86-year-old woman.

S3 E2 • 45m • HDTV14

Diane Downs was convicted for the 1983 murder of her daughter and attempted murder of her other two.

S3 E3 • 44m • HDTV14

Gary Leon Ridgway, also known as the Green River Killer, is one of the most prolific serial killers in United States history.

S3 E4 • 43m • HDTV14

Serial killer Ted Bundy confesses to 30 homicides committed in seven states between 1974 and 1978.

S3 E5 • 43m • HDTV14

Colin Ireland pleads guilty to torturing and murdering five gay men he picked up in 1993.

S3 E6 • 42m • HDTV14

Angus Sinclair is acquitted in 2007 in the trial for the World's End Murders.

S3 E7 • 43m • HDTV14

From November 1989 to November 1990, Aileen Wuornos killed at least six men throughout Florida.

S3 E8 • 42m • HDTV14

Serial killer Robert Lee Yates kills 13 prostitutes between 1996 and 1998.

S3 E9 • 43m • HDTV14

Scottish serial killer Robert Black attacks four young girls aged 5 to 11 between 1981 and 1986.

S3 E10 • 45m • HDTV14

Bobby Joe Long abducts, sexually assaults and murders at least 10 women in the Tampa Bay area.

S3 E11 • 44m • HDTV14

Bob Berdella kidnaps, rapes, tortures and murders at least six men in Kansas City, Missouri.

S3 E13 • 44m • HDTV14

Danny Rolling murdered five college students in Gainesville, Florida, in August 1990.

S3 E14 • 44m • HDTV14

David Heiss' obsession with Joanna Witton ends with him stabbing her boyfriend 86 times.

S3 E15 • 43m • HDTV14

Rader killed ten people in Kansas, and sent taunting letters to police and newspapers detailing his crimes.