If you break the article in half you can see that in the first half she's saying things that, in her mind, reflects the thoughts and words of a "good" mother:
"Every parent needs to cherish their child every night before bedtime because you never know – anything can happen," Grogan said.
"Panic, major panic. ‘Where's my daughter?' I was screaming, shouting for her," Grogan said.
Then, in the second half she relaxes and becomes more spontaneous:
"Something triggered in his head, and he just got off on strangling, I guess. He strangled my daughter to death. That's how she died," Grogan said.
Then she recovers and puts the "finishing touch" on her interview:
"Every time you look up in the night and you see a star, that's Bella. She's a shining star and she'll always be my shining star," Grogan said.
Can you see the dichotomy of her mind? This is someone who lacks insight and empathy; all she can do is try to imitate the emotions that most people feel.
http://www.fox5vegas.com/story/26463107/mother-on-childs-accused-killer-i-trusted-him