the fbi is not saying absolutely. but one theory is that a hard drive is really at key here. that it is missing from the killers' home computer, and they say that syed rizwan farook and tashfeen malik were in that area where you are seeing the divers right now at some point not too distant from when the actual crime happened. our ana cabrera is live in san bernardino right now, and she has been watching the process as many of us have been, ana and so as we are watching hour after hour these divers are bringing things up, and sifting through them, and then heading right back down under the murky water, so far hasn't yielded anything. >> you know, ashleigh, literally as we were getting set up for your live shot, they got into the the water. and this is the first they have been in the water today, and they were out here for several hours yesterday before nightf l nightfall, and we know that they are going to be out here as long as it takes to get through the whole lake to determine whether