The Russian President Dmitry Medvedev expressed "outrage" at the murder, and ordered a top-level investigation. Ms Estemirova had been investigating human rights abuses in Chechnya for the independent Memorial group. Memorial is one of Russia's best known rights groups, working to document Soviet-era abuses and those taking place more recently, especially in Chechnya.
In recent months, she had been gathering evidence of a campaign of house-burnings by government-backed militias.
http://news.bbc.co.uk/2/hi/europe/8152351.stm