My son and daughter, aged 10 and 8 at the time, witnessed the entire event. Their mother was, thankfully, focused on driving the car. My daughter's description was particularly detailed. She described a missile rising from the surface, "just like the fireworks" we had seen a few weeks earlier on July 4. The missile exploded and debris rained down to the surface of the water. My daughter wondered why fireworks would be set off during the day and not at night and why there was only one and not many like the 4th of July. I was contemplating contacting authorities about what my kids saw, but soon realized that the fix was in and the missile account wasn't one officials were interested in hearing about, so we never came forward. Hundreds of others did, however, including very credible and reliable military personnel who had been shot at by SAM's or had fired SAM's at enemy aircraft, only to be told their eyes deceived them and it was the exploding fuel tank all along.
I doubt we'll ever know whether it was friendly fire, a test of a surface launched or even submarine launched anti-aircraft missile gone awry, or a terrorist act, perhaps in retaliation for the accidental shoot down of an Iranian airliner by an American missile cruiser a couple of years before. If friendly fire, many American military personnel would have first hand knowledge of what happened. I marvel at the ability of the government to keep all of those people quiet. If the latter, terrorist retaliation, the missile used might have been American, part of hundreds or thousands of such munitions provided to the Shah of Iran years before, or one of many missiles our CIA had provided to "rebels" (now known as the Taliban) in Afghanistan in their fight against the Soviets.