According to the preliminary data, the crime has been committed by a 38-year-old Gyulchehly Bobokulova, a citizen of Uzbekistan. The woman worked as a babysitter. She waited until parents left the apartment, and then cut off the head of 4-year-old girl, set fire to the apartment and left it, reported Ekho Moskvy Radio Station.

According to the eyewitnesses, prior to being arrested, the woman had been walking near the October Field subway station for about an hour and threatened to blow herself up.

According to the detainee, she committed the crime after discovering her husband's infidelity.

She was appointed a forensic psychiatric examination.