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.
Remembering Anna Politkovskaya
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."