personally i don't like all this "the b/f did it" "the mum and dad are hiding something" stuff. Anyone is free to look at this site, including relatives of the missing person. I'm sure they would be so pleased to know that a random bunch of armchair psychologists think they did it based on the fact they were acting strangely, or did or didn't touch each other. What is a "normal" way to react when there is a possibility your child has been abducted?
People just always think that horrible stuff like this happens to other people, and i think the inability some people have to imagine what it wouldbe like to be in someone else's shoes is astounding sometimes