On the tenth anniversary of the murder of Natalia Estemirova, Chechnya’s most prominent human rights defender, nine international and two Russian human rights groups, jointly with FIDH and its member organization Human Rights Center “Memorial,” call on the Russian authorities to finally fulfil their obligation to conduct a thorough, impartial and effective investigation into her killing, bring the perpetrators to justice in fair trials before ordinary civilian courts and end impunity for human rights violations in Chechnya.