Notorious Serial Killers That Will Haunt Your Dreams (25 Pics)

There's just something extremely creepy about a guy who dedicates his free time to killing people.

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)