reporter: veronica went back home. she and james watched the front door. and they kept calling annie, but her phone went straight to voicemail. in the best of worlds, she s out with some young boyfriend you may or may not know, off on a lark of some kind. but it ll come to an end. and you ll get her back and regroup. yeah, our worst-case scenario at that point is, okay, she s going to come home pregnant. reporter: worst case scenario? not even close. he had told us that l.j. had driven by the house threatening chris. and a jogger makes a grim discovery. 911. what is the address of the emergency? i m at the river bottom. there s a pool of blood. feel the clarity of non-drowsy claritin
and i had a massive headache i couldn t get rid of. so i went to take a shower. and annie had gone downstairs to her room to listen to music. and we just figured it was another saturday. reporter: but it wasn t. when veronica finished her shower, annie was gone. james searched her bedroom. the note was tucked underneath her blanket. and i grabbed it. and it just said, i m sorry, mom, that i haven t been totally honest with you. reporter: annie, it turned out, was keeping a secret. in the note, she wrote, i lied to my friends. i told them i was p. p. veronica and james knew that stood for the word no teenager s parents want to hear, pregnant. just a few months earlier, they had learned that annie had had sex for the first time. she had had sex, and so to annie she had assumed that, well, because we ve had sex, i could be pregnant, or i am pregnant. reporter: but the pregnancy test was negative, and annie was now on birth control. why would she lie about being p ?
more than he betrayed us. annie knew him and annie trusted him. reporter: at his sentencing, chris, now 18, sounded remorseful. i am very sorry for everything that s happened. and i want to apologize to annie s family and to may my family and to everybody in court today for putting everybody through this. still trying to put words into everything that has happened. reporter: but for veronica, no amount of i m sorrys could make up for what she and annie s entire family lost. may you feel sadness. may you feel loss. may your tears heal your soul. but may your conscience never clear. i will grieve my daughter every day. and so for the charge of murder, a first-degree felony, i will sentence you to an indeterminate term not less than 15 years.
and what really stood out is we see these 25 handoffs. reporter: handoffs, the signal bouncing from tower to tower. reporter: eventually they found it, the only spot in town that caused the strange pattern of pings. it was at the jordan river, the very spot where annie was killed. who could have called chris that night the one who did, at precisely 9:01 p.m., was annie s mom, veronica. that was because of something annie had told veronica earlier that morning, something about chris. he had asked her, what would you do if i asked you to run away with me? reporter: run away. and then i told her, i said, you know, if you re ever missing, he s the first person i m calling. reporter: which she did, and without even realizing it, helped police place chris bagshaw at the scene of the crime right around the time her
the other back. sometimes the call is ignored. sometimes chris phone is blocked. reporter: what do you think is going on? it looks like a fight. it looks like they re yelling at each other and hanging up on each other. reporter: then, while going chris had no criminal record and no eyewitness put him at the scene. and there was still the mysterious l.j., annie s reported boyfriend whom police could never find. not in any police database, not anywhere. that is, until jaclyn knocked on one more door. [ knocking ] hey. how s it going? hi. are you jack? yeah. i m detective moore. this is detective johnson. reporter: her close buddy and predecessor, derek johnson, was by her side when she went to interview annie s friend jackson. he told them the same story that they d been hearing all along, annie telling friends she was pregnant. nothing new. but then they asked jackson if he new who l.j. was. his answer floored them. she would always referred to