Ooo, interesting episode.
I'm thinking more and more that Mr Madsen is involved in the sense he wants the disappearances to stop but he is an ass and very misguided, and on the other hand, I have a feeling Mr Jefferson isn't the Mr-perfect-teacher he appears to be.
Nathan I'm not so sure about anymore too. Drug dealer, self-entitled, dangerous ass ? Yeah, but something about him drugging Kate and posting the video sounds too convenient.
And Warren ? Smooth.