Thanks for taking the time to look that up, but I'm not so sure that means they retrieved all deleted material beyond knowing that something WAS deleted. Repeatedly, when listing the texts of NK, CW, and SW, they referred to texts appearing on SW's phone that had been deleted from CW's. ie messages to him that he deleted so they remained only on SW's phone, which is how LE found them.
Anyway, I'm mainly wondering, and still wonder, why the interviews with the CBI did not refer to text or calls between CW/NK made after the very early morning of Monday. IE when there were people "missing". NK said that the very early Tuesday morning calls, facetime, texts, should be considered part of Monday, IIRC. That's where the tape of the interview ended, from what I can tell. So, it appears they did not show the interview asking about her physical actions, and re text, phone calls to CW, on the days after the murders, after late Monday/continuing on to Tuesday early. All of Tuesday through when he picked up his father the next day. While he was at the Thayers, when he wasn't at the PDept. After bringing Dad to the station, I think he didn't have access to the phone. As I mentioned before, maybe they did release the tape of that part of her interview, but I can't find it.
As a poster mentioned a few days ago, in the doc dump that you were quoting from, the interviews with NK are just summarized. There is a lot more detail in the interview tapes, and there does not seem to be a transcript available online, you have to just invest most of a day and watch the interviews and listen to the phone calls LE/NK.