right away terry could see something was off. but instead of being this way the car was turned this way. basically taking up two, possibly three, parking spaces. i unlocked the car for him and he stopped and he put on gloves. he handed me a pair so that he says, just to be on the safe side. reporter: terry elivs couldn t understand it. the last time he heard from heather was when she sent that photo from her date. she was fine. now, she was nowhere to be found. and he was searching her abandoned car. on the center console, her driver s license was there. well, that s weird. and a couple of other business cards and identification cards. but there were no keys. reporter: that s when the officer said something that made terry elvis heart skip a beat. he said, let s take a look in the trunk. and i went back, and i turned the key. and he said, let me open it. i said, you know, just let me
horrible. she s missing, where is she at? police worked the clues. her car abandoned. i was scared to death. a mysterious caller captured on camera. why would this person call from a pay phone in the middle of the night? then came the secret. she was married. rumors about her being pregnant. she truly believed she was he was going to leave his wife. anger, betrayal, revenge. a bomb exploded. world war iii. this crazy love triangle, kidnapping, potential murder? this is heather s life we re talking about. terrifying. when you see your parents hurting, you wish that you can take all their pain away. it s impossible. reporter: myrtle beach, south carolina. vacation heaven.
reporter: and it was a hunt the prosecution said. the investigator told the jury he d used cellphone data to track the moorers movements. in the days before the disappearance, they showed up near heather s workplace, some of the bars she liked, even her home. the prosecution suggested the couple was stalking her. then in the early hours of december 18, 2013, with heather s roommate out of town, the prosecutor said the couple struck. it began here. the prosecutor showed the jury surveillance video of sidney walking into a walmart and purchasing a pregnancy test for heather. soon as they leave from walmart, they go and call her. why? cause the test is for her. reporter: the prosecution s theory was that sidney had called heather to come and get the test. take it and then meet up with him later at the landing. they said what she didn t know was that tammy would be there too. there s no doubt sidney is
tammy and sidney had been stalking heather. i would say you could compare their phone activity to anybody else s who lived and worked in the area. those are where the nightclubs are. there are restaurants there. it would appear that i were stalking her as well if you just looked at where my phone went. reporter: the defense said that what the jury really needed to understand was a simple fact. no piece of evidence put tammy at the landing. if anything, her alibi placed her miles away. did tammy s children stay in the house with you where your mother polly lives? yes. reporter: tammy s sister ashley told the court she was baby-sitting tammy s kids on the night of december 17, 2013. she said tammy and sidney went out together in the hours leading up to heather s disappearance. but ashley remembered when her sister came home. she texted me that night saying that she was home. do you know about what time that was?
literally chains him to the bed at night. that played back into the state s theory that tammy was the controlling one in this relationship. she was the one who wore the pants in this relationship. reporter: but as angry as she was at sidney for cheating, prosecutors said, tammy was furious with heather. she d sent her several texts. the prosecution said some of them were threats. heather was really afraid of tammy. she was. her friends had played a prank on her one time at work where they pretended to be tammy calling heather s phone and she was absolutely terrified. reporter: and the prosecution said if there was any doubt about the way tammy felt, just look at this nasty facebook post tammy had written after heather disappeared, calling her a psycho whore. she could ve said, oh, i m so sorry this girl s missing and hope you find her and left it alone. but, no, she goes on the attack. tammy is the one with the motive. she is the hunter.