I have lived by a river most of my life and what PF is saying about how easy it is to locate a drowned bodies does not tally up with how drowning incidents have panned out here. And that's with most of the time people witnessing exactly where the person got in trouble and 999/help being summoned very quickly. I don't know what to think as he's constantly changing what he says/his opinion and is very forthright/100% convinced in those opinions only to change to the complete opposite hours later.
What would be the equivalent of his search team here that worked the river by me in such circumstances just got on with things and never voiced anything publically let alone their theories and expected outcome with such certainly. IMO, It's really just adding to the social media circus, he needs to just get on with it, professinally work with the police and stop all the media courting for the sake of the case and Nicola and her family/loved ones.