Also worth noting that most people think of grooming by a paedophile. But grooming can be by county line gangs, terrorists, religious sectors, organised crime....there's so many possibilities.
Honestly until we find him, whatever the outcome, all we can do is speculate because there is no way of knowing exactly what's happened.
MOO.
I'm hoping his laptop and the DNS logs for the house will have/will give them an understanding of anything unusual going on.