Ukraine’s Main Intelligence Directorate (HUR) reported the information.Mazherin served in the OMON Obereg special unit of the Russian National Guard in the Kemerovo region. This unit is responsible for numerous war crimes and atrocities committed in Kyiv region during the Russian occupation of the region in February–March 2022.Based on evidence and eyewitness testimony, the Office of the Prosecutor General of Ukraine has opened a criminal case against members of Obereg for violating the laws and customs of war.As early as April 2022, Ukrainian military intelligence identified by name all members of this unit involved in the crimes and launched comprehensive measures aimed at bringing the perpetrators to justice.On October 22, the Main Intelligence Directorate, together with the Caucasus Liberation Movement, carried out a successful operation that eliminated at least three servicemen of the 247th Caucasian Cossack Regiment of the Russian Airborne Forces.