My understanding is that initial reports just stated that he was reported inside a McDonald’s, and lots of people and articles assumed it was a customer. But every recent article I’ve seen states it was an employee. At this point it could be either one, but from what I can see, I think it was an employee.
What information has come out that makes you say the last paragraph? I’m not doubting it’s validity in the slightest (I don’t think this guy is exactly an infallible source of wisdom), just haven’t seen a lot directly from him that would flesh his views out that much.