silently steer this air bus 320 into did french alps. a move that seems to be predetermined. new data showing minutes before the crash, the auto pilot was reset from the cruising altitude to 100 feet lowest possible setting. we do have our cnn reporters spanned out across the world to the crash site itself to the american flight sentcenter where this pilot spent time training. first to you will at this pilot s apartment in germany. investigators aren t saying specifically what this co-pilot s medical condition was, but we are getting information are from the medical center hospital that treated him not once but twice recently. what are they saying? reporter: the university medical center is saying they saw lubitz as a patient in february. again he came back on march 10th