CNN CNN Newsroom April 21, 2013 05:22:00
Internet he was doing. they were watching every step of him and telling today, this is a terrorist act. >> reporter: the fbi confirmed in 2011 they interviewed the older brother and family members, but it did not say how many times. it was at the request of russian intelligence ak considereding the a senior u.s. official. the fbi said that the request was based on information that tsarnaev was a follower of radical islam and a strong believer and had changed drastically since 2010. they said they had checked the u.s. government databases and looked for derogatory telephone communications and p...