Sergey Sokolov flew into a rage when shop assistant Kristina Medvedeva turned down sex after he bought her a kebab. A Russian cabbie has confessed to beheading a woman because she refused to have sex with him on their first date. Nazi-saluting taxi driver Sergey Sokolov, 46, claimed there was “chemistry” between him and shop assistant Kristina Medvedeva but he became enraged when she refused to sleep with him after he bought her a kebab, say police. He admitted to killing her and then told detectives he went to find a “cutting tool” and severed her head. He dumped her badly mutilated and headless corpse in a small lake on the outskirts of Eketerinburg, Russia‘s fourth city, close to a residential area called Michurinsky.