10. Charles Edmund Cullen: The Angel Of Death
Cullen worked as a nurse in many hospitals but kept switching jobs as he was fired for suspicious behaviour from many of them. He confessed to murdering 40 elderly patients in New Jersey from 1984 to 2003. He did this by poisoning his patients to death with unprescribed medication. He stated that he wanted to relieve the patients from their suffering much like an angel would. Experts say he had more than 300 victims. Cullen has been imprisoned for life.
9. Andrei Chikatilo: The Butcher
Andrei, the Butcher of Rostov, said, "When I used my knife, it brought psychological relief. I know I have to be destroyed. I was a mistake of nature." He was responsible for sexually assaulting, killing and *******ing 53 women and children between 1978 and 1990 in Russia. After being captured in 1992, he was ordered to be killed by a firing squad in 1994.
8. Alexander Pichushkin: The Chessboard Killer
He was also known as the 'Chessboard Killer' and the 'Bitsa Park Maniac'. His targets were homeless men whom he lured to his house with vodka. He is believed to have killed 49 people, most of them with repeated hammer blows to their heads and inserted a vodka bottle into the gaping skull wound. He initially said he wanted to complete the number of squares on a chessboard and kill 64 people. Also, it is believed that he was in competition with another Russian serial killer, Andrei Chikatilo, who was convicted in 1992 for 53 killings. It was the very same year Alexander started killing.
7. Ahmad Suradji: The Sorcerer
The cattle-breeder from Indonesia admitted to killing 42 girls and women between 1986 to 1997. As a part of his ritual, he used to bury them waist deep. Bodies were found in a sugarcane field with their heads facing his house, which he believed would give him more power. Suradji was sentenced to death by a firing squad in 2008.
6. Luis Garavito: The Beast
Also dubbed by the media as the Le Bestia (The Beast), the Colombian is probably one of the world's worst serial killers. He confessed to the torture, rape and murder of 147 young boys. But the number is believed to be over 300. He was found guilty on 139 counts, which should amount to 1,853 years in prison. But Columbian law limits it to 30, which is what he was sentenced to in 1999. He may be released earlier for cooperation and good behaviour.

Cullen worked as a nurse in many hospitals but kept switching jobs as he was fired for suspicious behaviour from many of them. He confessed to murdering 40 elderly patients in New Jersey from 1984 to 2003. He did this by poisoning his patients to death with unprescribed medication. He stated that he wanted to relieve the patients from their suffering much like an angel would. Experts say he had more than 300 victims. Cullen has been imprisoned for life.
9. Andrei Chikatilo: The Butcher
Andrei, the Butcher of Rostov, said, "When I used my knife, it brought psychological relief. I know I have to be destroyed. I was a mistake of nature." He was responsible for sexually assaulting, killing and *******ing 53 women and children between 1978 and 1990 in Russia. After being captured in 1992, he was ordered to be killed by a firing squad in 1994.
8. Alexander Pichushkin: The Chessboard Killer
He was also known as the 'Chessboard Killer' and the 'Bitsa Park Maniac'. His targets were homeless men whom he lured to his house with vodka. He is believed to have killed 49 people, most of them with repeated hammer blows to their heads and inserted a vodka bottle into the gaping skull wound. He initially said he wanted to complete the number of squares on a chessboard and kill 64 people. Also, it is believed that he was in competition with another Russian serial killer, Andrei Chikatilo, who was convicted in 1992 for 53 killings. It was the very same year Alexander started killing.
7. Ahmad Suradji: The Sorcerer
The cattle-breeder from Indonesia admitted to killing 42 girls and women between 1986 to 1997. As a part of his ritual, he used to bury them waist deep. Bodies were found in a sugarcane field with their heads facing his house, which he believed would give him more power. Suradji was sentenced to death by a firing squad in 2008.
6. Luis Garavito: The Beast
Also dubbed by the media as the Le Bestia (The Beast), the Colombian is probably one of the world's worst serial killers. He confessed to the torture, rape and murder of 147 young boys. But the number is believed to be over 300. He was found guilty on 139 counts, which should amount to 1,853 years in prison. But Columbian law limits it to 30, which is what he was sentenced to in 1999. He may be released earlier for cooperation and good behaviour.
