You mean the independent diver who unashamedly advertised his services on Sky News, claiming that the police didn’t know how to search the river properly and that he’d find her within about 10 minutes?
Having conned the family into hiring his services (no doubt at massive cost), he now appears to be covering up his own failings (and protecting his business) by spouting a load of conspiracy theories. Of course, it couldn’t possibly be the case that the police were right and he was wrong.
I’m surprised they haven’t arrested him for obstructing an investigation.