Watch S5, EP16: Keith Jesperson with Fubo
Keith Jesperson, known as the Happy Face Killer, killed eight women across several states in the 1990s.
Keith Jesperson, known as the Happy Face Killer, killed eight women across several states in the 1990s.
How to watch
More episodes
World's Most Evil Killers
S6, EP4 "Judy Buenoano"A killer murders her own son and becomes the first woman to be executed in Florida since 1848.
World's Most Evil Killers
S6, EP10 "Genene Jones"A serial killer works as a nurse in Texas, where she kills many children and infants by injecting them with drugs.
World's Most Evil Killers
S5, EP6 "Sun Set Strip Killers"Douglas Clark and Carol Bundy were a deadly duo who terrorized the streets of Los Angeles in the summer of 1980, targeting vulnerable women, teenagers and even a child.
World's Most Evil Killers
S5, EP3 "Jerry Brudos"Jerome Brudos is a serial killer and necrophile who murdered four women in Oregon during the 1960s; he is known as the Lust Killer and The Shoe Fetish Slayer.
World's Most Evil Killers
S8, EP3 "John Eric Armstrong"In 1999 and 2000, John Eric Armstrong cruised the streets of Detroit, Mich., looking for sex workers; seen as an ordinary husband, father and co-worker, no one in Armstrong's life suspected that he was a serial killer.
