Moscow police investigates murder of an Armenian citizen in the eastern district of the Russian capital. The body of 30-year-old Aharon Tigranyan was discovered yesterday near the entrance of №15 house on the Rudnevka street, law enforcement bodies informed. According to medical examination A. Tigranyan died in the result of plural knife wounds. The police has filed a criminal case. The investigation works out all versions of what happened, including murder on national ground, Russian media report.