Colombia
Luis "La Bestia" Gustavo - confirmed victims 131 /killing and raping children
Pedro "Monstruo de Andes" Lopez - confirmed victims 110 /killing and raping children
Daniel Camargo Barbosa - confirmed victims 72 /killing and raping women-children

Latvia
Ansis Kaupans - confirmed victims 90 /massacres during bank robberies

China
Yang "Fu" Zhinhai - confirmed victims 67 /killing married couples
Wang Qiang- confirmed victims 45 /killing and raping women

Russia
Andrei "Lalach" Chikatilo - confirmed victims 57 /torturing and killing women
Alexander "Bitsevsky Manyak" Pichushkin - victims kills 48 /torturing and killing homeless
Vasili "Volk" Komarov - confirmed victims 33 /torturing and killing people
Mikhail "Oboroten" Popkov - confirmed victims 22 /raping and killing women

Ukraine
Anatoly "Terminator" Onoprienko - confirmed victims 52 /torturing and killing people
Serhiy Tkach - confirmed victims 36 /raping and killing children

Iran
Ali "Qatil Asghari" Borujerdi - confirmed victims 33 /raping and killing children
Majid Salek Mohammadi - confirmed victims 24 /killing women

Egypt
Ramadan "Al Turbini" Abdel Rehim - confirmed victims 32 /raping and killing children

USA
Gary Ridgway - confirmed victims 49 /raping and killing women
John Wayne Gacy - confirmed victims 33 /raping and killing children
Ted Bundy - confirmed victims 35 /raping and killing women

South Africa
Moses "Ted Bundy" Sithole - confirmed victims 38 /raping and killing women
Maoupa "Wemmer pan" Cedric Maake - confirmed victims 27 /killing and torturing people