From the above link:
She and her good friend Libby (German) were excited and looking forward to planning their next 4 years of school together, Williams obituary states.
But wasn't the grandad of Libby quoted in MSM he had never met Abby? Not that takes away from the girls friendship. I'll look for the quote, but that did stand out to me.
I don't remember that from the article ... just the part about maybe one of the girls wanting to visit a sibling or a mom, that he was not too worried at first. I did read the article because that surprised me as well for the same reason ... why would the two girls have a planned trip to a remote park before the parents / guardians had met the child's friend ... didn't Libby live with her grandparents, so her grandfather should have met the friends ... except it was a sister who dropped them off at the park.