crash investigator. the number of bodies recovered so far is slowly picking up. 30 bodys have been recovered. how does that aid in the investigation as to what caused this crash to happen? >> the black box recorders are the key to establishing what happened. but the bodies have clues. those air safety investigators are particularly look at where the naked bodies were seated in the aircraft. because people that were ejected -- if the bodies are naked they were most certainly ejected in a breakup on impact. if they were seated in the tail of that plane the tail may be