Spoiler-laden post ahead.
So who out there is suspicious of Ryman, dead daughter or not?
Ryman seems to me to be pretty much superhumanly controlled and conscious of his actions' appearance at all times, and the events which ought to elicit the most severe responses from him are ones that we don't get to witness directly.
- His reactions during the final confrontation with Tate, which would normally be worthy of a lot of attention in the text, are played down, though he does have good reason to keep his voice down and his body still for most of the encounter, with Emily held at syringe-point.
- We never actually get to witness his initial reaction to his daughter's death. I don't think we even get a real secondhand account of it. We get Georgia describing how tough it was to tell the Rymans, but nothing about what Ryman actually does. At his own daughter's funeral, his words to Georgia are about himself, not his daughter or family, something Georgia herself notices.
- Ryman immediately (the day after) thinks about the press around his daughter's funeral.
- He asks Shaun to put off Georgia's funeral so he can attend. Which also provides a nice human interest story and puts him on the right side, media-wise, of Georgia's heroism and martyrdom.
- Whether he means to or not, he sends Georgia to her death as soon as he learns she may have evidence implicating Tate.
- Finally, Tate, when he's holding Emily, says, "maybe if you'd disposed of the journalists", which strongly implies to me that he'd spoken with Ryman about who all might need to be "disposed" of.
This is all perfectly explainable by factors other than "Peter Ryman is the devil" (three cheers for ambiguity!), not the least of which is just how canny a politician Ryman is supposed to be. It does, however, leave the door open nicely to his being a seriously misguided idealist, or maybe a broken-down pragmatist who's become party to all sorts of evils he'd normally reject in the name of expediency and compromise. Maybe even something much worse.
On an unrelated note: I suspect that at some point, Shaun (or Becks) is going to be faced with Zombie Steve. There are enough mentions of just how physically big Steve is that we've *gotta* see a zombie version of him before we're done.