i don t know anything about him. i really don t. does he live here locally, obviously, in germantown? no. memphis? do you know? not that i know of. i don t think he lives in memphis. reporter: detectives had to find edward another way. so they accessed heather s facebook account and mined it for clues. and there it was, a profile with a last name attached. and what was that name? edward raulerson. reporter: police dialed a phone number they found for ed. he told them he lived 500 miles away in eastern tennessee and agreed to make the eight-hour drive to germantown to be interviewed. detectives wondered had he made the trip once already that week to take heather away? and most importantly, could he tell them where she was now? just because you ve got somebody living 500 miles away does not mean that they didn t have anything to do with this disappearance. reporter: police recorded ed raulerson s interview. during questioning, ed made a potentially important admissi
obviously, if she left, she had to be on foot. or she had made contact with somebody for them to pick her up. reporter: the grapevine was now working overtime. friends from heather s dance class soon heard that she was missing. one of them was cari cooper, the class instructor. she also went over to the house. turns out cari knew as much about crime scenes as she did about dance moves. that s because cari s a cop in nearby memphis. well, i kind of took on that police officer role at that moment. and i combed, like, every inch of her property looking for anything. did you find anything? reporter: as detectives were putting together the pieces of heather s life, her husband chris came to the police station. i didn t want to miss a knock on the door. sure. i m worried. chris told detectives something that could be vital to the investigation. he said heather had written him
i m freaking out because i still, i don t know if this is a game. reporter: detectives had been analyzing that strange e-mail and asked forensic experts to comb through chris computers seized at his apartment. a theory began to emerge. investigators now believed chris had written the e-mail himself. did you suspect that chris was posing as heather, sending that e-mail? yes, i did, because chris was an expert when it came to computers. reporter: and what s more, they suspected it was chris who actually sent those sexy texts to ed, not heather. they believed he d stolen her phone and was pretending to be her. that is really weird that you re getting sexting from her husband. yeah, her husband. it s kind of one of them things, okay, i need to put that out of my mind. reporter: chris plan, detectives thought, was to throw them off the trail, to make it
look like heather ran off and was having an affair. but they didn t believe a word of his story or that his concern for heather was genuine. the reason you were freaking out is because she was dead. your actions after that make no sense. everything else after that was alibi. okay. so what did i do with her? that s what we re asking, chris. reporter: chris was sticking to his story, but the biggest break in the case was about to happen. what chris didn t know is that while detectives were turning up the heat inside the interrogation room, outside they sent some cadaver dogs over to the mall to sniff around his car. and now the team at the mall wanted to speak with detectives immediately. they said the dogs just hammered his car. they said they re all over it. reporter: they found the scent of human remains. i don t know why cadaver dogs hit on my car. i do.
sent those sexy texts to ed, not heather. they believed he d stolen her phone and was pretending to be her. that is really weird that you re getting sexting from her husband. yeah, her husband. it s kind of one of them things, okay, i need to put that out of my mind. reporter: chris plan, detectives thought, was to throw them off the trail, to make it look like heather ran off and was having an affair. but they didn t believe a word of his story or that his concern for heather was genuine. the reason you were freaking out is because she was dead. your actions after that make no sense. everything else after that was alibi. okay. so what did i do with her? that s what we re asking, chris. reporter: chris was sticking to his story, but the biggest break in the case was about to happen. what chris didn t know is that while detectives were turning up the heat inside the interrogation room, outside they sent some cadaver dogs over to the mall to sniff around his car. and now t