Meet the world's worst serial killers

Surender Koli(India): He is an accused Indian serial killer. He and Moninder Singh Pandher are accused of murdering and then raping 17 children in the Noida serial killings.

Raman Raghav(India): He was a psychopathic serial killer who operated in the city of Mumbai , India in the mid-1960s. He was diagnosed with schizophrenia after his arrest. Pavement and hutment dwellers were bludgeoned to death while they slept.

Charles Sobhraj: Is a French serial killer of Indian and Vietnamese origin, who preyed on Western tourists throughout Southeast Asia during the 1970s. Nicknamed "the Serpent" and "the Bikini killer" for his skills at deception and evasion, he allegedly committed at least 12 murders.

Jack the Ripper(UK): Responsible for the murders of prostitutes from the Whitechapel Area of London in 1888, Jack the Ripper's identity is yet unknown. His victims were prostitutes and they were brutally murdered and some of their internal organs were surgically removed by the killer.

Aileen Wuornos (USA): She shot at least seven men, and was executed on October 9, 2002. Actor Charlize Theron's portrayal of Wuornos in Monster won her an Oscar.

Albert Fish (USA): He's the real-life Hannibal Lector. He claims to have molested and eaten 100 victims. His speciality was torture and cannibalisation, and his weapons of choice were meat cleavers, saws and butcher knives. He was executed on January 16, 1936.

Ed Gein: He was a famous serial killer and proved to be an inspiration for Thomas Harris for creating the famous character of Buffalo Bill in "The Silence of the Lambs". Ed Gein would skin his victims, exhume corpses and then decorate his home with parts of their bodies and use the skin to make clothes and furniture items. He died on the 26th of July, 1984 in a mental institution.

Gary Ridgway (USA): He's called the Green River Killer. He killed prostitutes, and then dumped them in Washington State's Green River. He received 48 life sentences, which he is currently serving.

John Wayne Gacy (USA): He killed 33 people, and lead a double life. He had family and kids. He buried his victims in his 'crawlspace' under the house. He was executed in 1994.

Jeffrey Dahmer (USA): He was the worst of the lot, and enjoyed cannibalistic murders, storing body parts in the refrigerator. He was murdered in prison in November 1994. He was 34 years old.

Ted Bundy (USA): Between 1974 and 1978, Bundy went on a killing spree that covered Utah, Seattle, Colorado and Florida. Crowds cheered when he got roasted in the chair in Florida. He was consigned to the electric char on January 24, 1989.

Pedro Lopez (South America): A South American serial killer, he is believed to have butchered more than 300 girls in Columbia, Peru and Ecuador in the late 70s and early 80s. According to some news agencies he was arrested in 1980, but was freed by the government in Ecuador in 1998 and deported to Colombia.

Andrei Chikatilo (Russia): He's Russia's most notorious killer, and is believed to have killed 53 women and children between 1979 and 1990. He was called the Butcher of Rostov, and was executed on February 14, 1994.

Bruno Ludke (Germany): He killed ay least 80 people, mainly women, and began his 15-year killing spree in 1928. He was declared insane and was institutionalized in a hospital in Vienna. He died by lethal injection in 1944.

Pietro Pacciani (Italy): Called the Monster of Florence, he is believed to have murdered eight couples in Florence between 1968 and 1985. He was convicted in 1994, and was sentenced to 16 life sentences. He was freed on appeal in 1996.