This is one of those statements made by DB where it's difficult to have a true context IMO. And even if you did, it's up for debate, interpretation and let's face it; judgment.
When solely reading it, for me the word "never" jumps out because not only does it sounds so definitive and permanent, it's also quite dramatic.
Yes, something terrible happened in that house; whether it was a kidnapping or an accident (I'll leave out murder since it's too gruesome, though not IM-possible) and DB has the right to share her emotions in whatever way she sees fit - it's her baby that's missing after all.
But what strikes me as odd - and really I'm aware I'm passing judgment, is that Lisa could technically still return safe and sound. It's "only" been 10 days. That's a lot of time in terms of missing her but also very little time in terms of being so resolute and use the word "NEVER"
I guess what I'm trying to say is; I understand the family would want to move, it just seems so sudden and abrupt. It sounds like DB doesn't want to return to the place her daughter died (and she knows this) because she can't bear the feeling of Lisa not returning, knowing she won't return.
Anyway my :twocents: and opinion.