how was your parents relationship, do you remember? they would fight. it was an interesting relationship. there were times we were like the perfect family, we d do like fun family stuff. and then there were times i do remember being woken up at night by my parents fighting. reporter: for the first time, someone inside the lovelace family was revealing the turmoil before cory s death. but then the detective asked lyndsay to describe that tuesday in 2006 when her mother s body was found. tuesday morning, before you went to school, what do you remember? the answer seemed to take the air out of his theory of the case. she was up and walking around she had made breakfast. i don t remember what we had for breakfast. but she had like made us breakfast and she was helping us get ready for school because we all had our little valentines day boxes. the young woman candid about her parent s troubled marriage was nonetheless supportive of her father s account. cory ha died minu
mortis is setting in, and then if a person is thinking, oh, my god. what did i do? and, oh, there s that pillow in her i m going to get rid of that pillow, then the arms are already up. reporter: and you think that s what happened? yes. reporter: but then came, perhaps, the most anticipated testimony for the prosecution. lyndsay, curtis own daughter, took the stand. two times, over a span of eight years, she told police her mother was alive that morning. she said she had felt better. reporter: but on the stand, with her dad s life on the line, she changed her story. telling jurors she was no longer sure her mom was alive that day. don t remember any of it. reporter: but it doesn t stick in your memory? nope. reporter: and yet, detective baird s notes, you do tell him the story about seeing your mother. and then with the videotaped interview with detective gibson, you seem quite clear about that morning, and yes, you saw her and went off to school. what had ha