Is it just me that doesn't believe the McDonald's employee thing? I think they used a Pegasus or Stingray type privacy violating device/exploit and just said it was a restaurant employee.
Or they pretended to be a customer and said to the employee, "Gee, that guy really looks a lot like the killer, doesn't he, ha ha wouldn't that be funny, anyway give me a big mac and fries. He does look like him though."