reporter: but todd had always had a knack for making money and he figured it out, got into the booming wi-fi business. and pretty soon cathy and todd moved into a big lakeside house in georgia with a boat, fancy cars, and of course an airplane. cathy, always so nurturing, told her friends she was ready to take the next step. i remember cathy calling me and telling me that they were living in georgia and that she was excited about it, and that she wanted to have children. so i was excited for her, because i can see her with little kids. reporter: but nine years into what looked like a happy marriage children had yet to arrive. and now we know, because of what was in that blue box they never would. time to find out what happened. who knew the discovery in that box would bring investigators all the way across the county to the blue ridge mountains of north georgia, to a campsite, high on a hill. here was a lonely place.