Dr. Harold Fredrick Shipman was responsible for at least 250 murders. The English doctor injected his patients with lethal doses of diamorphine. He then changed his victims' wills so he could benefit from inheriting large sums of money. He hanged himself in January 2004.

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150 girls raped and murdered hacked to death with a machete in Colombia and Ecuador. These are the statistics of Daniel Camargo Barbosa, a Colombian serial killer. He was sentenced to 16 years in prison, the maximum punishment that can be given in Ecuador.

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Pedro Rodrigues Filho was convicted of killing 71 people. He was sentenced to 128 years of imprisonment. Filho's sentenced was increased to 400 years because of the additional murders he carried out whilst in prison.

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Pedro Rodrigues Filho was convicted of killing 71 people. He was sentenced to 128 years of imprisonment. Filho's sentenced was increased to 400 years because of the additional murders he carried out whilst in prison.

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Gary Ridgway is a serial killer admitting to more than 70 murders in the state of Washington in the 80's and 90's. He avoided the death penalty by confessing the crimes he committed in detail helping the police locate bodies of victims.

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Pedro Alonso Lopez is a Colombian rapist and serial killer. He was accused and convicted of killing and raping more than 300 girls in Peru. He is sentenced to life imprisonment.

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Another widely known serial killer and rapist is American Ted Bundy. He would typically approach his targets in a public place and then lure them in an isolated place where he would sexually assault and kill the women. Bundy decapitated at least 12 women whose heads he kept inside his apartment as trophies. He received the death sentence and was electrocuted in 1989.

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Another widely known serial killer and rapist is American Ted Bundy. He would typically approach his targets in a public place and then lure them in an isolated place where he would sexually assault and kill the women. Bundy decapitated at least 12 women whose heads he kept inside his apartment as trophies. He received the death sentence and was electrocuted in 1989.

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John Wayne Gacy attacked and killed 33 young boys in the period 1972-1978 in Chicago, Illinois. He lured his victims to his home and strangled them with a torniquet. He was given the death sentence and was eventually killed by lethal injection in May 1994.

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Peter William Suttfcliffe is a British serial killer who targetted prostitutes. He is known as the "Yorkshire Ripper". He was convicted in 1981 of murdering 33 women. He is sentenced to life imprisonment without parole.

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Peter William Suttfcliffe is a British serial killer who targetted prostitutes. He is known as the "Yorkshire Ripper". He was convicted in 1981 of murdering 33 women. He is sentenced to life imprisonment without parole.

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