they are looking for you and the thing investigators believe that started the series of events with the killing of the mit officer and robbing of the convenience store and high speed chase. >> greta: i take it they have the cell phone records and records of tamerlan. >> they do. >> greta: and those corroborate the phone call? >> i don't know that. >> greta: is there any other sort of reason to have suspicion of her? >> i'm not sure at this point that authorities have anything other than what they have gotten from dhokhar tsarnaev. from the beginning of the investigation there was question hes about her. if tamerlan went back and lived with her, spent time with her in the days after the attack, could it be possible that she didn't know what he had been up to. there are real questions. >> greta: i guess if they are living together. i don't know if she is living at home with her parents or living with him some place in the boston area. i imagine they had a small apartment. six pressure cookers coming into the house.