Sadly there is. I think he killed her. In a fight. In some way that makes it clear it’s homicide as autopsy decrees Then he rushed home to tell parents who called attorney who told them that best legal option was to say absolutely nothing. Which they did That’s the simplest explanation for what happened
But other scenarios possible. Maybe he left her for a time, alone at campsite, returned and she was dead. Maybe she told him to leave, take the Danged van and get out of her life. Maybe she took up with other people. But none of these other scenarios feel right —I’d think calling LE, telling friends would have happened if the other things were the case.
Or maybe he returned and refused to talk and parents scared, called attorney who said to say nothing.
All we know is that he left Gabby alone, she was killed, van came back to parents’ place, attorney advised parents to say nothing, and parents have reported him missing
Nothing else is certain. No Certain report of BL at house even.