Anythings possible Aleph. Welcome to WS! With the little information we have from LE, this theory is just one more to consider. But then, how does the POI fit in with this theory?
Thanks! Been mostly lurking a long time and I love it here. The near-universal kindness and respect among the posters here is a real light in the dark, especially amid the awful stories in the news today.
I must admit that I hadn't considered the POI in my theory. But since I'm on a roll: the POI may be a witness himself and afraid to come forward. Maybe he's got a warrant out on him, or maybe (anything's possible) he didn't realize the significance of whatever he saw. His arrival may have scared the perps away without the POI realizing what they were up to. This could apply to any theory, not just mine.
I really hope law enforcement has been asking around in the NA community.