This is a snippet from the article about the interview he gave stating which characters would not be in the movie.
' “All I can say is that when I did that radio interview I had just been doing 22 hours of press. I had just got off a flight from New Zealand…,” said Orci.'
I just explained this to you earlier in the thread, in fact it's quoted at the top of the page.
Also Orci has just declared the Comics canon, which he semi-declared a while back anyway, which should take care of the Gary Mitchell speculation once and for all.