The Russian Prosecutor-General's office, which is in charge of the investigation, says it is pursuing several possible motives.
The European Union is pushing Moscow to fully investigate the death.
Anna Politkovskaya at RFE/RL in July 2006 (RFE/RL)
A BRAVE VOICE SILENCED. Prominent Russian journalist Anna Politkovskaya was killed on October 7 in her Moscow apartment building. An outspoken critic of the Kremlin, she was best-known for her reporting on the conflict in Chechnya. Former Soviet President Gorbachev called her slaying "a true political homicide, a vendetta."