What To Know Before 'Serial Killer Week' Premieres

Dorothea Puente was ultimately accused of killing nine people — but a jury wasn't convinced.

Joel Rifkin murdered 17 women, making him New York's deadliest serial killer. But his eventual capture was a total accident as the serial killer wasn't even on police's radar. Why not?

Between 1993 and 1998, a Chicago serial killer preyed upon women in the Englewood community.

The daughter of a serial killer puts distance between herself and her murderous mother who “doesn’t feel remorse.”

Three women found dead in the Seattle area had ties to the nightclub scene — and so did their killer.

"Mastermind of Murder" explores the cunning criminals who manipulated others into doing their dirty work. Oxygen's new original series premieres Sunday, April 18th at 8:30/7:30c.

The so-called "I-95 Killer" pursued gay men and placed items like leaves, socks, and sex toys in their mouths after their brutal murders.

Steven Brian Pennell, also known as the "Route 40 Killer," picked women up off the highway before torturing and killing them.

People who can convince you to do their bidding are the stuff of nightmares — and the movies.

“The man I knew could be good and decent,” Dennis Rader's daughter once said of her infamous father, often known as the "BTK" killer. “That’s why I have to hold on to the belief that he truly did love us."

There are all sorts of ways masterminds of murder have manipulated their victims.

Bruce McArthur was eventually found guilty of murdering eight men in the Toronto area – but the investigation first began as a possible cannibalism case.

It took nearly eight years and two task forces to capture a Toronto serial killer who murdered eight men.