Gareyev — who claimed he gave Karaglanova money on dates — said he lashed out because she told him that he wasn’t attractive, according to authorities.
The body of Karaglanova, who also recently completed medical school, was found inside a large suitcase with stab wounds to her neck and chest while wearing only lace garters, the newspaper reports.
Detectives in Moscow found no signs of a struggle inside Karaglanova’s apartment and have not located the weapon believed to have been used in the slaying.
Following the slaughter, Gareyev claimed that he stripped her naked and stuffed her body inside a large suitcase, Moscow newspaper Moskovsky Komsomolets reported.
Gareyev appeared Thursday in court, where he apologized to her parents and told reporters that he was “ashamed of myself.”