I asked about this in 2-3 other forums and no trace was ever found. I'm starting to think that the twitter guy is the one making it up. he's the only one who seems to know about it.
The case is thus closed. It's most probably a fluke on all levels, meaning no journalist, no anonymous person, no interview ever took place, no journalist notes were ever found on Denver airport.
Actually relieved! Hope this didn't spoil anyone's day.