A fellow tenant at the Makati Tuscany Condominium found the body of Gurgen Abertovich Balayan, 22, a Russian Embassy protocol officer at 7:15 p.m.
Balayan was renting a unit at the second floor of the condo.
Senior Inspector Gary Reyes, chief of the Makati Police Departments Homicide Section, said they are investigating possible foul play.
Investigators are also checking the Russian nationals medical records.
Reyes said his men would coordinate with the Russian Embassy to learn more about Balayan.
Investigators are also looking for witnesses at the condo. Michael Punongbayan, Pia Lee-Brago