re. the comments made about the father - it never fails to amaze me the number of people who can't imagine any other reaction than their own, who believe that a differing reaction must somehow be suspicious.
When my 19yr old brother went missing nearly 18 years ago, after 2 days my mum 'knew' he was dead for the simple reason he had no reason to vanish on a night out, all his clothes were still there at home, as were the majority of his wages and all his savings.
She also said to us that it would be a relief for his body to be found as then at least she would know and could properly grieve.
Thankfully this was before the internet and as he was a young man his case didn't get the country-wide publicity, so I didn't have to endure a load of online speculation about my mother's 'creepiness' or other signs of guilt when his corpse finally floated up out of the dock where his murderer had dumped him 
Going to hide this thread now, has brought up too many upsetting memories. Hope the amateur profilers feel good about themselves.