Alexander Pichushkin

Known as the Chessboard Killer. Convicted of murdering 48 victims and suspected of killing 60. Claimed to have murdered 62 people, because he didn't know that two of his victims had survived; stated goal of becoming Russia's most prolific serial killer.

"For me, life without murder is like life without food for you. I felt like the father of all these people, since it was I who opened the door for them to another world."

Gary Ridgway

Truck painter who confessed to killing 71 women. The United States' most prolific serial killer; also known as The Green River Killer. He almost exclusively targeted sex workers from Seattle. Suspected of killing over 90 victims, confessed to 71, convicted of 49.

 "I would talk to her... and get her mind off of the, sex, anything she was nervous about. And think, you know, she thinks, 'Oh, this guy cares'... which I didn't. I just want to, uh, get her in the vehicle and eventually kill her."

Anatoly Onoprienko

Known as "The Beast of Ukraine", "The Terminator" and "Citizen O". Convicted of the murders of 9 people in 1989 and 43 people in 1995–1996. Sentenced to death, later commuted to life. Traveled through Europe illegally from 1990 to 1995; whether he killed during this time is unknown.

The killings followed a set pattern. He chose an isolated house and gained the attention of the occupants by creating a commotion. He would then kill all occupants starting with the adult male, before going to find and kill the spouse and finally the children. He would then usually set the buildings alight in an attempt to cover his tracks. He would also kill any witness unlucky enough to cross his path during his murderous rampages.

Andrei Romanovich Chikatilo

Known as Butcher of Rostov, The Red Ripper or The Rostov Ripper. Convicted of the murder of 53 women and children between 1978 and 1990. Executed in 1994. Another man was previously convicted and executed for his crimes.

"The girl's cries and the way she moved while I was stabbing her drove me into a state of sexual frenzy."Andrei Chikatilo confessing to the 1982 murder of 16-year-old Olga Kuprina

Yang Xinhai

Yang Xinhai (Chinese: 杨新海) (July 29, 1968 – February 14, 2004), also known as Wang Ganggang, Yang Zhiya, and Yang Liu, was a Chinese serial killer who confessed to committing 65 murders and 23 rapes between 1999 and 2003, and was sentenced to death and executed for 67. He was dubbed the "Monster Killer" by the media. He is the most prolific serial killer China has seen.

"When I killed people I had a desire. This inspired me to kill more. I don't care whether they deserve to live or not. It is none of my concern...I have no desire to be part of society. Society is not my concern."

Pedro Rodrigues Filho

Pedro Rodrigues Filho (born 1954 in Santa Rita do Sapucaí) is a Brazilian serial killer. Nicknamed Pedrinho Matador (Killer Petey) and arrested in 1973, in 2003 he was convicted of murdering at least 71 people and sentenced to 128 years in prison. The maximum prison term that can be served in Brazil is 30 years.

Daniel Camargo Barbosa

Daniel Camargo Barbosa (22 January 1936 – 13 November 1994) was a Colombian psychopathic serial killer. It is believed that he raped and killed over 150 young girls in Colombia and Ecuador during the 1970s and 1980s.

Pedro López

Pedro López was arrested when an attempted abduction failed and he was trapped by market traders. He confessed to over three hundred murders. The police only believed him when a flash flood uncovered a mass grave containing many of his victims. Pedro López confessed to three hundred sexual assaults and stranglings

Luis Alfredo Garavito Cubillos

Luis Alfredo Garavito Cubillos

Garavito's victims were poor children, peasant children, or street children, between the ages of 8 and 16. Garavito approached them on the street or countryside and offered them gifts or small amounts of money. After gaining their trust, he took the children for a walk and when they got tired, he would take advantage of them. He then raped them, cut their throats, and usually dismembered their corpses. Most corpses showed signs of torture.

Garavito was captured on 22 April 1999. He confessed to murdering 140 children. However, he is still under investigation for the murder of 172 children in more than 59 towns in Colombia.