The way he seems to have gone into complete control is an easy sign saying that he's definately got something behind his back, and since he used to work there maybe he still does work there. He might have been ordered to turn them in. Then there's also the fact that he didn't agree too much with anything everyone else said. I don't know what that has to do with being a traitor but it doesn't sound sliggy.
Did the kidnapping ever take place? Because I seem to remember you were hiding in a cave.