CNN Starting Point May 31, 2013 12:09:00
>> yeah. that's exactly right. consistent with what we're finding out about tamerlan. he was the more aggressive brother obviously the ring leader and everyone who encountered him found him -- from his wife to associates to people at the gym, you know, he was a violent guy. and whether there is any clues in the fact that he shaved or his behavior beforehand, that's being investigated right now. but when we look at the sort of individual terrorist attacks, brothers who sort of, you know, planned this attack, they seem to be very, very casual about it. and that i think is the most sort of scary ...
Source: archive.org