Editing Andrei Chikatilo (section)

===Second murder and subsequent killings===
On 3 September 1981, Chikatilo encountered a 17-year-old boarding school student, Larisa Tkachenko, standing at a bus stop as he exited a public library in Rostov city centre. According to his subsequent confession, Chikatilo lured Tkachenko to a forest near the [[Don River (Russia)|Don River]] with the pretext of drinking [[vodka]] and "relaxing".{{sfn|Conradi|1992|p=55}} When they reached a secluded area, he threw the girl to the ground before tearing off her clothes and attempting intercourse, as Tkachenko remonstrated against his actions.{{sfn|Lourie|1993|p=59}} When Chikatilo failed to achieve an erection, he forced mud inside her mouth to stifle her screams before battering and strangling her to death. As he had no knife, Chikatilo mutilated the body with his teeth and a six-foot-long stick;{{sfn|Cullen|1994|p=213}} he also tore one nipple from Tkachenko's body with his teeth before loosely covering her body with leaves, branches, and torn pages of newspaper. Tkachenko's body was found the following day.{{sfn|Lourie|1993|p=60}}

Nine months after the murder of Tkachenko, on 12 June 1982, Chikatilo travelled by bus to the [[Bagayevsky District]] of Rostov to purchase vegetables. Having to change buses in the village of [[Donskoy (inhabited locality)|Donskoi]], he decided to continue his journey on foot.{{sfn|Cullen|1994|p=199}} Walking away from the bus station, he encountered a 13-year-old girl, Lyubov Biryuk, who was walking home from a shopping trip.{{sfn|Cullen|1994|p=4}} The two walked together for approximately a quarter of a mile until their path was shielded from the view of potential witnesses by bushes,{{sfn|Cullen|1994|p=199}} whereupon Chikatilo pounced upon Biryuk, dragged her into nearby undergrowth, tore off her dress, and killed her by stabbing and slashing her to death as he imitated performing intercourse.{{sfn|Conradi|1992|p=60}} When her body was found on 27 June, the [[medical examiner]] discovered evidence of twenty-two knife wounds inflicted to the head, neck, chest, and pelvic region.{{sfn|Krivich|1993|p=89}} Further wounds found on the skull suggested the killer had attacked Biryuk from behind with the handle and blade of his knife. In addition, several striations were discovered upon Biryuk's [[Orbit (anatomy)|eye sockets]].

Following Biryuk's murder, Chikatilo no longer attempted to resist his homicidal urges: between July and September 1982, he killed a further five victims between the ages of 9 and 18. He established a pattern of approaching children, [[runaway (dependent)|runaways]], and young [[vagrancy|vagrants]] at bus or railway stations,{{sfn|Lane|1994|p=2057}} enticing them to a nearby forest or other secluded area, and killing them, usually by stabbing, slashing and [[Disembowelment|eviscerating]] the victim with a knife; although some victims, in addition to receiving a multitude of knife wounds, were also strangled or battered to death.{{sfn|Hickey|2003|p=70}}

[[File:Памятник Ирине Карабельниковой.jpg|170px|thumb|Memorial to Chikatilo's seventh victim, [[#Karabelnikova|Irina Karabelnikova]]. This memorial was erected by Karabelnikova's father at the site of her murder.{{sfn|Cavendish|1996|p=37}}]]

Many of the victims' bodies bore evidence of mutilation to the eye sockets. [[Forensic pathology|Pathologists]] concluded these injuries had been caused by a knife, leading investigators to the conclusion the killer had gouged out the eyes of his victims.{{sfn|Cullen|1994|p=30}} Chikatilo's adult female victims were often [[prostitute]]s or homeless women whom he would lure to secluded areas with promises of alcohol or money. He would typically attempt intercourse with these victims, but he would usually be unable to achieve or maintain an erection; this would send him into a murderous fury, particularly if the woman mocked his impotence. He would achieve orgasm only when he stabbed and slashed the victim to death.{{sfn|Hall|1993|p=84}} Chikatilo's child and adolescent victims were of both sexes; he would lure these victims to secluded areas using a variety of ruses, usually formed in the initial conversation with the victim,{{sfn|Conradi|1992|p=178}} such as promising them assistance, company or offering to show them a shortcut,{{sfn|Conradi|1992|p=98}} a bus stop, a chance to view rare stamps, films or coins, or with an offer of food or candy.{{sfn|Lane|Gregg|1992|p=96}} He would usually overpower these victims once they were alone, often tying their hands behind their backs with a length of rope before stuffing mud or [[loam]] into the victims' mouths to silence their screams, and then proceed to kill them.{{sfn|Cullen|1994|p=202}} After the killing, Chikatilo would make rudimentary—though seldom serious—efforts to conceal the body{{sfn|Conradi|1992|p=146}} before leaving the crime scene.

On 11 December 1982, Chikatilo encountered a 10-year-old girl named Olga Stalmachenok riding a bus to her parents' home in Novoshakhtinsk and persuaded the child to leave the bus with him. She was last seen by a fellow passenger, who reported that a middle-aged man had led the girl away firmly by the hand.{{sfn|Conradi|1992|p=65}} Chikatilo lured the girl to a cornfield on the outskirts of the city, stabbed her in excess of fifty times around the head and body, ripped open her chest and excised her lower bowel and [[uterus]].{{sfn|Cullen|1994|p=30}}