That several newspapers use them still does not mean they show the original envelopes. As I said, at least here police normally don't show these, at least not before the investigations are finished. If nothing else then to have a way to identify false admits.

No conspiracy here. Just everyday police work.

But if you want a conspiracy theory, how about this:

It was made by a Republican that wanted to blame the Democrats for making a false flag operation.
That is the reason why there are so many easwy to see errors you found!

At least that is more likely than a "deep state" action which would be made a bit more profesionally, right?