Investigators are exploring potential links between Boston Marathon bombing suspect Tamerlan Tsarnaev and an extremist group known as the Caucasus Emirate, sources tell Fox News.
The investigation is based on the contents of his YouTube channel and his trip to Russia in the first half of 2012, which included stops in Dagestan 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.
The 26-year-old Tsarnaev was killed early Friday in a shootout with police. His 19-year-old brother, Dzhokhar Tsarnaev, was captured that night. They are suspected of placing two bombs along the marathon course Monday that killed three and injured roughly 180 others.
Investigators are now looking for potential ties including Tamerlan’s email traffic, the posting of videos in support of an Islamist objective and whether there was person-to-person contact.
Sources tell Fox that Caucasus Emirate is one of several groups being investigated.
Caucasus Emirate was designated a foreign terrorist organization by the State Department in 2011.
“The group uses bombings, shootings and attempted assassinations to provoke a revolution and expel the Russian government from the North Caucasus region,” according to designation.
From: http://feeds.foxnews.com/~r/foxnews/national/~3/KhbT1yUUdH0/