One conspiracy theory surrounding this event is claim Flight 93 was shot down by a U.S. fighter jet. David Ray Griffin and Alex Jones have asserted that large parts of the plane, including the main body of the engine, landed miles away from the main wreckage site, too far away for an ordinary plane crash. Jones says that planes usually leave a small debris field when they crash, and that this is not compatible with reports of wreckage found farther away from the main crash site. One person claimed that the main body of the engine was found miles away from the main wreckage site with damage comparable to that which a heat-seeking missile would do to an airliner.