Suspect posted video of jihadist , analysis shows . Aunt of alleged Boston bomber Tamerlan Tsarnaev speaks with Tsarnaev in Tsarnaev . She sheds light on Tsarnaev 's Islamist visit from December 2012 . He visited town where an Russian militant was killed in December 2012 . A video of the militant was posted , then removed from Tsarnaev 's YouTube channel .
Aunt of alleged Boston bomber Tamerlan Tsarnaev speaks with Tsarnaev in Tsarnaev . She sheds light on Tsarnaev 's Islamist visit from December 2012 . He visited town where an Russian militant was killed in December 2012 . A video of the militant was posted , then removed from Tsarnaev 's YouTube channel .