I might have to back down here. I've done a little research myself on the subject. Seems it happens more often than I thought.
One thing that's got me puzzled though, in the clip the plane comes from the spectators right side and passes to their left. In the photograph the plane is going from left to right. According to the guy's story he clicks the shutter speed at the moment he hears the boom. Would'nt the plane have already been past the point it split the sonic waves to produce the sonic boom? So by the time the photographer heard the boom, the plane would have been at a point ahead in the direction of travel from where the sound would have been produced?
Second thing, in the video the sky's were partly cloudy, had to have been to produce the humidity needed to form these vapor clouds. But the photograph shows nothing but perfect looking sky's. As if a high barometric pressure was present. That means no moisture in the air to form clouds. hmmmmm......
Third, It's my knowledge the government has put a stop to breaking into supersonic below a specified altitude due to windows being broken in houses, picture frames falling off walls car alarms going off, among other things affect by the intense thunder that accompanies the waves of sonic travel. Living about two hours from Whitman air Airforce Base, one of the largest Airforce Bases, as well as home of the B-2 bomber(Which I get to see almost daily) and many other top secret aircraft, I'm quite used to hearing sonic booms. Used to happen at my old neighborhood, sometimes as many as several times per day. Point being, the aircraft carrier was said to be less than a 100 feet altitude and the spectators were 200 yards away, They would have been deaf from the sound, maybe would have even been dead to the sound pressure. Anybody know what the human body can take as far as sound pressure before damage occurs?