Notoriously Evil Serial Killers

A Serial Killer is a person who murders multiple people, usually with a "cooling off" period in between. The FBI estimates that at any given time, there are from 35 to 50 active serial killers in the U.S.
Aileen Wuornos
Albert Fish
Alexander Pichushkin
Andrei Chikatilo
Angelo Buono and Kenneth Bianchi
Arthur Shawcross
Bobby Joe Long
The Boston Strangler
Charles Edmund Cullen
Craig Price
Daniel Camargo Barbosa
David Berkowitz
David Parker Ray
Dean Corll
Dennis Nilsen
Dennis Rader
Donald Harvey
Ed Gein
Edmund Kemper
Fred and Rosemary West
Gary Ridgway
H.H. Holmes
The Honolulu Strangler
Ian Brady and Myra Hindley
Israel Keyes
Jack the Ripper
Jeffrey Dahmer
John George Haigh
John Wayne Gacy
Juan Corona
Larry Eyler
Lawrence Bittaker and Roy Norris
Leonard Lake and Charles Ng
Nannie Doss
Original Night Stalker
Patrick Kearney
Pedro López
Pedro Rodrigues Filho
Peter Sutcliffe
Richard Kuklinski
Richard Ramirez
Robert Hansen
Rodney Alcala
Ted Bundy
Tommy Lynn Sells
Tsutomu Miyazaki
William Bonin
The Zodiac Killer