The victim had not been dismembered or otherwise mutilated, nor had she been seen near mass transportation. Because of these discrepancies, many investigators expressed serious doubts as to whether Golovakha's murder had been committed by the killer they were seeking. On 18 August 1986 a victim was found buried in a depression of earth in the grounds of a collective farm in the city of Bataysk. The wounds inflicted on this victim bore the trademark mutilations of victims linked to the manhunt killed between 1982 and 1985. The victim was an 18-year-old secretary named Irina Pogoryelova. Pogoryelova's body bore all the trademark mutilations of the previous victims; her body had been slit open from the neck to the genitalia, with one breast removed and her eyes cut out. As the murderer had made serious efforts to bury the body, some investigators theorized that this explained the sudden dearth in the number of victims found. By the autumn of 1986, investigators in Rostov theorized that the unknown killer may have moved to another part of the Soviet Union and continued killing there. As the three victims killed in the Rostov Oblast in 1985 and 1986 had died in August, some investigators gave credence to the possibility the perpetrator may have relocated to another part of the Soviet Union, and may only be returning to the Rostov Oblast in summer. The Rostov police compiled bulletins to be sent to all forces throughout the Soviet Union, describing the pattern of wounds their unknown killer inflicted upon his victims and requesting feedback from any police force who had discovered murder victims with wounds matching those upon the victims found in the Rostov Oblast. The response was negative. In 1987 Chikatilo killed three times. On each occasion the murder took place while he was on a business trip far away from the Rostov Oblast, and none of these murders were linked to the manhunt in Rostov. Chikatilo's first murder in 1987 was committed on 16 May, when he encountered a 12-year-old boy, named Oleg Makarenkov, at a train station in the Urals town of Revda. Makarenkov was lured from the station with the promise of sharing a meal with Chikatilo at his dacha; he was murdered in woodland close to the station, although his body would remain undiscovered until 1991. In July, he killed a 12-year-old boy, named Ivan Bilovetsky, in the Ukrainian city of Zaporizhia, and on 15 September, he killed a 16-year-old vocational school student, named Yuri Tereshonok, in woodland on the outskirts of Leningrad.