Her mom and sister leaving without a word is only her subjective view of things and feels a bit strange based on what little we know of them.
I wouldn't it put it past the dad to have killed and disposed of them.
Didnt a famous musician try this in an airport and everyone ignored him. Such is the power of name recognition. You value something more when you know the "history" of it, and something less that you hear for free in a public place.
So precious.
I'm still a bit worried about his inability to control his body though. With the strenght he has it could go really badly if he ended up causing an accident.