they are still searching for any signs of life at this hour and still have not found any. martha: obviously they re going to want to figure out how these plans mound up on a path that would allow them to collide. what do we know about that investigation, adam? that is interesting. we have a map to give an idea of the san francisco bay layout. they started at half moon bay. there was an event down there. the pilots were both from the golgold rush country above sacramento. if you draw a straight line, they would ve gone through the south bay, but they went through the north bay where this took place. and the plan that collided making it back, it flew 40 more minutes passing six or seven general aviation airports before landed back in ione. it was a vintage warplane. martha: thank you very much. bill: there are no details in the investigation.