I think Doug's pretty much dead.
I mean, I hope Doug's dead, with the shit he's put Rachel through. Who I would consider the only person that's remotely likable in this series (save for the Herald staff, whose story is basically over with at this point). I only worry about the fact that she took Doug's car to escape with, which was being tracked.
Also, I don't understand why Frank himself murdered Zoe to get rid of her, why they didn't just have Doug do the same with Rachel?