Sergei Ryakhovsky

Ryakhovsky died on 21 January 2005 from long untreated tuberculosis while serving his sentence in prison.

In July 1995, Ryakhovsky was sentenced to death by firing squad, and after hearing the verdict said: "I will be back". However, in 1996 Russia imposed a moratorium on executions, instead the sentence was commuted to life imprisonment in a maximum-security penal colony in Solikamsk, Perm Oblast.

During a routine search of a crime scene area, police investigators found a shack with a noose fixed to the ceiling. Considering it a part of the preparation for the next murder, they decided to set an ambush. On 13 April 1993 Ryakhovsky arrived at the shack and was subsequently arrested by the police officers. Despite his considerable strength and violent temperament, Ryakhovsky showed absolutely no resistance, later admitting that after seeing weapons in the hands of officers he became frozen with fear. The Russian press nicknamed Ryakhovsky "The Balashikha Ripper" and "The Hippopotamus" because of his thick neck and hulking posture. During the investigation Ryakhovsky co-operated with officials and investigators, willingly indicating crime scenes and describing methods of killing. According to his confessions, most murders were not planned and were rather an effect of a sudden impulse, which was used to explain motivation behind the murder of a 70-year-old woman and 78-year-old man Ryakhovsky had accidentally met in the forest. There was an exception, as the murders of the three homosexuals he had met in Izmailovski Park in 1988 were thoroughly planned. Most victims were people over 40 and around 50 years of age, while three of his victims were over 60.

According to psychiatrists from the Moscow Serbsky Institute, Ryakhovsky's necrophiliac tendencies were caused by a malfunction in his central nervous system. He was evaluated as sane, competent for trial and fully responsible for his actions. However, after being informed of his diagnosis, Ryakhovsky's behaviour changed dramatically. At first, complacent and fully co-operating with the investigators, he suddenly became obstructive, stopped co-operating, began demanding punishment for the experts, and also revoked his previous confessions. During the 1993 Russian constitutional crisis, Ryakhovsky, who supported the Supreme Soviet, wrote a letter to Alexander Rutskoy claiming that he is an innocent victim of the "anti-national authority".

In 1988, Ryakhovsky committed his first murder when he killed a homosexual man in Bitsa, a village in Moscow Oblast on the outskirts of Moscow. The same year he killed three homosexual men in Izmailovski Park, which Ryakhovsky claimed was part of his personal mission to "cleanse" society by killing homosexuals and prostitutes. Despite this, the majority of his victims between 1988 and 1993 were elderly women, although he also killed five men and two teenagers. Ryakhovsky's main methods of killing were stabbing or strangulation with his bare hands or a rope, and after the victim had died he mutilated the bodies, mainly in the genital area. Some corpses of Ryakhovsky's victims would have sexual acts performed upon them. In January 1993, Ryakhovsky murdered a 78-year-old man, cut off his head with a hunting knife and, one day later, returned to cut off his leg. His next victim, a 65-year-old woman, had her abdomen ruptured with a weak pyrotechnical device. He hanged, eviscerated, and then decapitated his penultimate victim, a 16-year-old boy, with a knife.

Sergei Vasilyevich Ryakhovsky (Russian: Серге́й Васильевич Ряховский ; 29 December 1962 – 21 January 2005) was a Soviet-Russian serial killer, convicted for the killing of 19 people in the Moscow area between 1988 and 1993.

Sergei Vasilyevich Ryakhovsky was born on 29 December 1962, in the Saltykovka area of Balashikha, Moscow Oblast, a city 1 kilometre (0.62 mi) east of Moscow. Ryakhovsky was 6 ft 6 in (198 cm) tall and weighed 280 pounds (130 kg). In 1982, Ryakhovsky claimed he began to feel "an irresistible desire for intimacy with a woman", and made several attempts to rape elderly women in the Golyanovo area of east Moscow, for which he was convicted of hooliganism and received a four-year sentence in prison.