>> to me, it appeared that she was financially stable and he was financially in trouble. >> it wasn't until shortly before she disappeared that i ever heard her say anything even remotely unkind about him. >> and friends told police that shirley was planning to leave mike. >> she felt that he was financially irresponsible. shirley said that she was planning to leave the area and mike would not be going with her. >> to keep tabs on mike's whereabouts, police secretly put a global positioning satellite receiver underneath his car. these days, police no longer follow suspects. satellites do it, instead.