“Both phones were lost in the fire”
Really? A 16 year goes no where without their phone, so how did it get in the House where the Mother and Brother were killed unless she was there?
She was there. Both phones were turned off at 4PM. They left the house without phones.
After 13 phone calls she was picked up by someone unknown after gym. She was driven to his house. While she was waiting, he killed and tortured her mother and brother. And killed the dog. The guy set up a timer for the fire to start later.
They got the cat and left for Idaho. He was holding her under duress, but both managed to change clothes and relieve themselves.
The jury is still out.