He was repeatedly tried for property crimes according to the Russian Criminal Code, but managed to free himself from prison and returned to Perm early summer of 2013.
A week after his release, on June 13 in the Motovilikhinsky City District, Koshcheev killed a drinking companion, and then, in front of the cohabitant of the murdered man, robbed the apartment items worth a total of 600 rubles.
On June 24, he took possession of the property of a Perm resident in the amount of 20 thousand rubles through fraud.
On July 11, Koshcheev attacked a girl, but she managed to escape, as the killer was distracted by her cell phone.
On December 31, 2013, the Perm Regional Court found Koshcheev guilty of 5 murders and sentenced him to life imprisonment in a special regime colony.