"The reason she is able to afford her house is because one of the other girls is paying everyone off to keep their mouths shut. Seeing how much money comes from someone being murdered, she convinced her parents to get life insurance that would pay back big. When they asked why, she brought up her dead 'friend' and cried about what if that happened to them."
"As soon as she turned 18, she killed both of her parents in cold blood. After dealing with the bodies, she reported to the police that her parents went missing 3 days ago. Seeing that no one could leave the fog, after weeks of searching, the parents were deemed dead and she got a big payout."