Alexander Pichushkin is a Russian serial killer from Moscow. In 1992 the then 18-year-old student began planning the so-called checkerboard murders together with his friend and classmate Mikhail Odiichuk.

Patrick Kearney is an American necrophile serial killer who has at least 43 people on his conscience. Kearney's profile-less murder scheme, which is found in most serial killers, made it difficult for the police to catch him.

The California serial killer Edmund Kemper started his murder series at just 15 years old: he shot his grandmother and then stabbed her several times.

Rodney James Alcala is an American serial killer who started his murder in 1971. He has been waiting for his death sentence in a California prison since 2010.

In 2006, serial killer Ronald Dominique admitted to having committed 23 murders and numerous rapes in the federal state seed Lousiana. His victims were young men.

Yang Xinhai was born on July 29, 1968. As the son of a poor farming family, he was introverted and tenderly strung as the youngest child. At school he had to provide himself with food, which was always a challenge without money. When he was 17, he dropped out of school to join migrant workers.

Peter Sutcliffe had raided and raped at least 20 women, including at least 13 women, in the West and South Yorkshire counties of Leeds and Bradford in 1975.

Peter Kürten, also called Vampire from Düsseldorf, was a multiple serial killer at the beginning of the last century. He committed a series of sexual crimes, robberies and murders of children and adults.

Luis Garavito is a rapist and serial killer from Colombia. He was born on January 25, 1957. At the age of 35, he started talking to small children, luring them away, and then raping and killing them. He remained undetected for seven years.

"Kiss my ass.": Those were the last words of serial killer John Wayne Gacy. He was sentenced to death twelve times for 33 murders of young men and children - world record. The actual number of murder victims was taken to his grave by one of the most notorious serial killers of all time. He died from a lethal injection on May 10, 1994 at the Stateville Correction Center.

American serial killer Gary Ridgway has been convicted of 48 murders. However, he stood twice as many. He murdered countless women and girls in Washington State. Most of the victims were prostitutes.

Anatoly Onoprienko was a 52-time serial killer from Ukraine. He started his murder series at the age of 19. Most of the time he went to abandoned houses and killed the whole family.

Moses Sithole is a South African serial killer. He committed the ABC murder series, named after his crime scenes Atteridgeville, then Boksburg and finally Cleveland, a suburb of Johannesburg. In some cases, he called the victims' relatives to mock them.