that's what happened in this case. >> reporter: prosecutor butner called his first witness. katie democker, steve and carol's elder daughter. >> did she have a habit of things that she did when she came home from work? >> she did. she typically went for a run maybe four days a week out on the backland. >> and to your recollection, did she leave the door unlocked when she would do that? >> yes. >> reporter: an unlocked door. opportunity for her killer to enter and wait. on the stand, carol's mother, ruth kennedy, had to relive that very last phone call with her daughter. how exactly did it end so abruptly? she told the sheriff's department operator that carol had screamed "oh, no." >> and you just said that, "oh, no" a certain way with a certain emphasis, was that the way that she said it to your recollection? >> she said, "oh, no." basically, that's the way it came out. >> did she scream then? >> it really was not a scream. i'm sure it was because i was so rattled myself. she just said, "oh, no" that's all she said and basically in that tone of voice, like it was more dismay