The FAA says there was no ELT emitting, and there was no mayday call.
The stories of how the crash was discovered are all fabricated, just like the close-up plane in Lang’s photo.
I wondered about that...where did that message come from? Who heard the weak signal, who sent the weak signal? The best I can recommend is what I myself apply, the waiting technique. You save it, you set it aside, and out of the blue, you can bet another piece of the puzzle appears. Because it’s impossible to hide everything, forever. You would be surprised to see how well that works.