violation. the third man, robel filipphil is an american citizen. he is as shocked by the violence as the rest of the community is. he did not know this individual was involved in a bombing. my client, azamat tazhayakov is as shocked and concerned that someone he knew was involved with the boston marathon bombing. he has cooperated fully with authorities and looks forward to the truth coming out. reporter: and interesting to note, christine and john, that according to authorities, one month before the marathon, tsavraev apparently told two of his friends over lunch that he knew how to make a bomb and that in the criminal complaint, it says one of the now suspects saw vaseline in tsavraev s dorm room after the attack and he knew then that the vaseline was used to make a bomb, we spoke to bomb
allegedly did following the boston marathon bombing. following their arrests, the question, will there be more to come? the investigation continues to focus on the widow of tamerlan tsavraev as new developments come to light. two cnn sources familiar with the investigation say katherine russell, video of tindividual w tsavraev, spoke with him the night that authorities released video. they are trying to determine the nature of the call, what was said and why she didn t notify authorities. this as three classmates of dzhokhar are under arrest. two seen here with tsavraev on a trip to times square. the third man accused of of lying to authorities and the other two accused of tampering with the investigation. the three men saw sfwlok ar on