Who told you that they refused to answer the mother’s questions?
It’s common knowledge but here is a link...
“Petito said his family began worrying after several days without hearing from their daughter.
“We called Brian, we called the mom, we called the dad, we called the sister, we called every number that we could find,” Petito said. “No phone calls were picked up, no text messages were returned.””
With all respect, I don’t have a lot of faith in ‘common knowledge’ and ‘hearsay’.
I like to hear evidence under oath in a court of Law - and cross-examined.
I’m just like that.