[Miss Marple]

I also want to know, but a small plane won't necessarily be followed by air traffic controllers with id and such. They are going to have to figure out what type of plane it is and then check airports within flight range.

Of course, I am not an expert and will defer to people who now more than I.

[SE Mom]

A worker in the building saying people still being evacuated...debris still falling making it difficult.

[Pukin Dog]

Surely the dude had a transponder. Its not legal to fly without them in most places. The news race to be first makes it impossible for any of them to be accurate. With two phone calls they could find out who is missing and what was it.