>> right. >> the sense one gets of pam from you guys is somebody who is kind of a human calculator. >> calculator is an apt description. i think she was cold and calculating, that she used men for her benefit. and ultimately, she used gary for her benefit. >> but it would take years before prosecutors would actually get to try the case. as it meandered through the legal system, motion after motion. for a time, pam was ruled mentally incompetent to stand trial. she told at least one doctor someone had been watching and listening to her for years, and she believed she had tracking devices placed in her passport and her head. but by late 2012, the judge said she was fit to proceed. >> i think that the police got tunnel vision with regard to this investigation. >> the woman who'd lived the good life now had a