>> well, what we do know is that there is a record of a phone call that was placed between the two phones, between kathrine russell's phone and the phone of her late-husband. that phone call was made after the pictures were released about 5:00 in the evening and before the shootout which led in turn to her husband's death. also interesting wolf, she's distancing herself a little bit. she decided not to claim tamerlan tsarnaev's body instead saying it belonged to the family, the mother and father. >> have her lawyers ever explained why she didn't call the police if -- and this is still a big if, if she recognized from the photo that this was in fact her husband and brother-in-law? >> no. it's not clear. and it could be something as simple as she saw her husband and was calling up to say what's going on? or that perhaps she had a deeper understanding about what was going to happen and therefore may have been alerting him.