These witnesses were dismissed. Plus, if a bomb did it, then you would see even disbursment of debris.
You can see that the debris from the object in question, remained on the trajectory even after impact, note that the divers were told to find debris away from the actual main debris sites (Navy Divers, not local salvage crews).
2) The FBI went into the investigation, as Kallstrom himself said, expecting to find a BOMB, (not a missile). Again, I refer you to the discussion of this in Peter Lance (who thinks it was a Lockerbie-type device).
3) As far as I can tell, no one, ever, has produced any radar evidence from ANY source showing a missile. I understand that something so small might not be picked up by all FAA radars, but certainly there were more than enough radars that would have identified an airborne object. Not one has surfaced to my knowledge.
4) The bomb and missile theories are, in many cases, mutually exclusive.
5) The guy who wrote the book on TWA 800 has vascillated between a Stinger and a Navy drone. There are problems with each. Most don't think a Singer could have operated that far out, or at that altitude. A "drone-run-amok" implicates the whole U.S. navy, and, again two administrations, which, so far, has not had A SINGLE LEAK. Too kooky to believe.