vo: only at jack in the box. >> reporter: rachael anderson, a mother of four, had vanished, and it wasthe job of captain dan hally and the missing persons task force to find out what had happened to her. rachael has not hopped a bus. >> no. >> reporter: she's not in anybody's emergency room? >> no. >> that's correct. >> reporter: you suspect foul play. >> right. >> absolutely. >> reporter: the investigators started working their way through a list of suspects, starting with the men who wanted to be in rachael's life. there was the neighbor who tried to take her out and been turned down. he had an alibi. that left the old boyfriend named slemp, the one rachael said she was afraid of, but he could account for his whereabouts when rachael went missing. the former boyfriend was not playing out? >> correct, yeah. >> reporter: you had to follow all those leads? >> absolutely. as these threads started, we would follow them as we could, but charles capone was the one that never was a dead end. >> reporter: captain dan hally had been suspicious of charles ever since rachael stopped by to make a

. >> rachael anderson had one great passion. >> she would have had a child every year if she could.oved being a mom so much. >> and with kids at home, it was extra scary when someone started stalking her. >> we were talking late at night and she got real panicked, and she said, i think there's somebody outside. >> watching her every move. >> knowing where she's at in her house, which lights were on. >> making disturbing calls with a disguised voice. >> it's on