I can see that, but I also agree with @TheGardener in that how they’re acting (sitting at home and just casually checking their mail) does NOT at all speak towards the mindset of the parents of a missing person who may be in danger. I used to volunteer with families of the missing-none of them were this casual. Not even those who had family members suspected of being involved in crimes. They wanted to know their loved one was safe and didn’t care what/who was in the way or what judgment came with it. This family is nothing but red flags. IMO it says they don’t really believe he’s in danger at all.