just looked like somebody walk through there. >> no signs of a struggle inside. but he did discover a clue outside the front door. >> there is a tire track in the grass. looked like someone had pulled up right next to the front door. >> the neighbor across history had seen something. >> she looked out the window and saw a black vehicle pull into the driveway, in about 25 or 30 minutes later saw a skinny white male with short hair, outside of the house, with the vehicle back to the front door. put two and two together and that's probably where the tire truck came. from >> the detective found more to go on in the back of her car. >> i found a notebook that she kept, that showed a listing for that house. >> is there anything in that no book that was providing you with any clues? >> attached that listing was an email address, and a phone number. >> did you call it right away? >> i did not call it right away. >> he did not pick up the phone for a good reason, he had a theory. >> i felt that beverley, wherever she was, she was being