to potential suspect. shepard: last night they had a person of interest. did some investigating and now it sound like he is a person of interest no more. the investigate tv source told us the saudi person of interest is fully cooperating and consented to the searches of his apartment. that s the video we have and he is not a suspect in the investigation. earlier we had signs from federal law enforcement indicating this high level of cooperation, consenting to the search, indicated he may not be of significant investigative value. he was a 20-year-old saudi on a student visa and no hits hits fm on the terror watch list, but just actually one final point. the thing that has people s attention, what i m told is there s no significant intelligence or chatter during or immediately after this attack. and that is one of the reasons we saw such a public plea from the boston police and the fbi for people to come forward with video and still images, to help