From the Cooper Anderson interview with Dr. Blue:
CNN.com - Transcripts
RANDI KAYE, CNN NATIONAL
CORRESPONDENT: Anderson, thanks. Dr. Blue, I wanted to ask you about a text that Gabby's mother received from her daughter's phone on August 30th, and if you look at your timeline, her death would have occurred between August 22nd and August 29th.
So if this text on August 30th that said there was no service in Yosemite came from Gabby's phone,
can you say definitively that Gabby Petito could not have sent that text on August 30th?
BLUE: No, I can't. When we talk about timeline of death this far out from a death, that timeline can be plus or minus a week at a minimum. And that is because of different weather conditions and different locations. So it's really very, very rough.
It's not like TV, where they say, oh, they died on this date.
It's a very rough estimate, and I know that law enforcement is using other methods to try to determine a most -- a more exact date, but from an autopsy point of view, it is a very rough estimate. COOPER: So -- and Randi, just -- can you explain to our viewers why you asked that question, because I mean, if she was not obviously alive on that day, when they received that text, then it would indicate that Brian Laundrie or somebody else theoretically sent that text to them.
KAYE: Right. I mean, it's key because if she didn't send it and the text said that there was -- it no read,
"No service in Yosemite," whoever did send it, the question is, were they trying to make her parents or her family or investigators even believe that Gabby Petito, at some point had been in Yosemite and perhaps, they would have started looking for her there.
[20:05:03]
COOPER: Dr. Blue, can you tell us if Gabby Petito was killed in the location where authorities found her or if she was possibly moved there?
BLUE: That's not for us to determine, that's for law enforcement to determine.
But I just want to point out, it's Yellowstone, not Yosemite.