So, Google's results only seem interested on showing the articles about the NTSB's ultimate findings, not the ones that were originally reported immediately after the crash. I then assumed that some of the articles I had linked in that post would probably link back to their own previous articles about it, and figured I'd just start by going through that list from the top down.

Sure enough, the second one I linked, from CBS News, linked to their older article on it, entitled, "No one was driving Tesla before fiery crash that killed 2 passengers in Texas, authorities say".

https://www.cbsnews.com/news/tesla-crash-texas-no-one-dirvin...

Edit:

>The assertion had two parts and these stories only reflect the latter.

They don't, actually. Take this line from the Ars piece (though Ars isn't the only one that says something like this - most of them do! :D), for instance:

>The possible involvement of Autopilot was suggested in the wake of initial reports that one of the two occupants—specifically the driver—was found in the back seat of the car.

If you click the Ars link, you'll notice that the phrase "initial reports" also links to their own article written immediately after the event, titled, "Cops 'almost 99.9% sure' Tesla had no one at the wheel before deadly crash".