The purported leader of the separatist and Islamic bad boy group is
Doku Count DokuUmarov
... Self-styled first emir of the Caucasus Emirate. Count Doku has announced that his forces will not target civilians, but qualified that statement by saying there aren't any civilians in Russia...
, a Chechen Islamic jihad boy in Russia whose ordering of numerous attacks on civilians has earned him the nickname Russia's the late Osama bin Laden
... who no longer exists...
. The U.N.'s Al Qaeda sanctions committee has also cited Umarov for his alleged connections with Al Qaeda and other bad boy groups.
The investigation is based on the contents of Tsarnaev's YouTube channel and his trip to Russia in the first half of 2012, which included stops in Dagestan
...a formerly inoffensive Caucasus
republiccurrently bedevilled by low-level Islamic insurgency, occasional outbreaks of separatism, ethnic tensions and terrorism, primarily due to its proximity to Chechnya. There are several dozen ethnic groups, most of which speak either Caucasian, Turkic, or Iranian languages. Largest among these ethnic groups are the Avar, Dargin, Kumyk, Lezgin, and Laks. While Russers form less than five percent of the population, Russian remains the primary official language and the lingua franca...
and Chechnya.
Sources tell Fox that videos deleted from his YouTube account include a "terrorist playlist" and links to Vilayat Dagestan, which is associated with Caucasus Emirate.