Steve Fossett missing since a solo flight over Nevada mountains . Single - engine plane last seen 20 to 30 miles from impact point , sheriff says . Plane not found after hours of search . Experienced aviator would have signaled rescuers if alive , sheriff says .
Steve Fossett missing since September solo flight over Nevada mountains . Single-engine plane last seen 20 to 25 miles from departure point , sheriff says . Plane not found after month of searching . Experienced aviator would have signaled rescuers if alive , sheriff says .