Karl Denke, proven victims: 30 (possible victims: 40)
Ramadan Abdel Rehim Mansour, proven victims: 32
Vasili Komaroff, proven victims: 33
Ali Asghar Borujerdi, proven victims: 33
John Wayne Gacy, proven victims: 33 (possible victims: 34)
Ted Bundy, proven victims: 35 (possible victims: 36)
Hadj Mohammed Mesfewi, proven victims: 36
Gennady Mikhasevich, proven victims: 36 (possible victims: 43-55)
Serhiy Tkach, proven victims: 36 (possible victims: 80)
Moses Sithole, proven victims: 38
Chen Zhengping, proven victims: 42
Ahmad Suradji, proven victims: 42 (possible victims: 70)
Wang Qiang, proven victims: 45
Alexander Pichushkin, proven victims: 48 (possible victims: 60)
Gary Ridgway, proven victims: 49 (possible victims: 71-90)
Anatoly Onoprienko, proven victims: 52
Andrei Chikatilo, proven victims: 53 (possible victims: 56)
Abul Djabar, proven victims: 65 (possible victims: 300)
Yang Xinhai, proven victims: 67
Kampatimar Shankariya, proven victims: 70
Pedro Rodrigues Filho, proven victims: 71 (possible victims: 100)
Daniel Camargo, proven victims: 72 (possible victims: 150)
Peng Maiji, proven victims: 77
Pedro Lopez, proven victims: 110 (possible victims: 310-350)
Luis Garavito, proven victims: 138 (possible victims: 172-400)
.