playback button on the voicemail just to hear her voice. dad, mom, if you re there, pick up the phone. if you re there, pick up the phone. call me back later, bye. i would look at photographs of her or play those voicemail messages. just keeping her voice current in my mind. reporter: meanwhile, andy savage s a-team of ex-detectives were making progress and when they flashed that fat bag of cash around the neighborhood, they got a rise out of ethan and heather. a furious ethan called andy. there are investigators out here accusing me of being involved in this, kate was my best friend in life. as he s on the phone, kim calls. she starts out in this rage, what are you doing out here, accusing me of this, we had nothing to do with that. reporter: fascinating
keith morrison: meanwhile, andy savage s a-team of detectives was making progress. and when they flashed that fat grocery bag of cash around the neighborhood, they certainly got a rise out of ethan and heather. a furious ethan called andy. he said, your investigators are out here and they re accusing me of being involved in this homicide. kate was my best friend in life. as he s on the phone, kamp calls. she starts out in this rage about, you know, what are you doing out here? you re accusing me of this. we had nothing to do with that. keith morrison: fascinating reaction, thought andy savage. and perhaps, an opportunity. we had done a lot of background on kamp. and so we knew her, and we knew her personality. and we knew a little bit about what buttons to push. so the reaction we had towards heather, was one of comfort not one of angst. and during that time, we planted the seeds that, as a mother, she must know the feeling of janice waring missing her daughter.