Is K the only witness to Somer making it to the vacant house? If so, we know she made it as far as the tanks...per young boy who saw her there. Do we know if K worked at the house all day on Monday? Does he come and go...perhaps to pick up material/supplies for the project?? Maybe he leaves to pick up material and picks up Somer as well because he sees her as she's coming from the tanks. He comes back, works...perhaps she's is in trunk...I dunno...don't even want to think about that. Then when others leave he brings her into vacant house and disposes of her from there. How else does any of this make sense?? There HAS to be some connection to the vacant else. If what he said is true, she stops talks to him, then goes on her merry way, then she disappears sometime after that but whoever gets her brings her back to the house?? This doesn't make sense. Am I putting too much stock in the fact that there really is evidence in that house????