Dokka Umarov

Doku (Dokka) Khamatovich Umarov (; ; also called by the Arabized name of "Dokka Abu Usman") (13 April 1964 – "reported" March 18, 2014) was a Chechen Islamist militant in Russia. Umarov claimed responsibly for some attacks on Russian civilians. This earned himself a media nickname of "Russia's Bin Laden".
Umarov was the first emir of the Caucasus Emirate (from 2007 to 2013).
On 18 March 2014, the Russian government said that Umarov was dead.