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
reporter: but heather s car still in the driveway stuck in detective kemp s mind. 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? i found nothing, looked through the sheds behind the house, railroad area and there was nothing. 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