But has he come out of it with wads of cash?
I think he volunteered his services free of charge. I've no idea if he's been paid for his interviews.
Acting on the information he was given and the area he was assigned to search, plus his past experience of how bodies move once in the water, he was satisfied she wasn't in the area he searched. His mistake was to say with absolute certainty she wasn't in the river. They were all working on the assumption she went into the river by the bench. In his defence after he made that statement the police volunteered further information about her being a high risk person. He then stated that would have altered his search pattern if he had known that.
One strange thing very few people are mentioning is the people who found her. The media portrayed them to be a couple of walkers who spotted the body but by all accounts this doesn't appear to be true. The man is from Oldham and is a psychic brought in or volunteering his services to the police. Now either they got very lucky or he's a shit hot psychic to turn up and pinpoint the exact location and find her, when all the expert search teams missed her.
All in all a very sad case as are all missing person ones that end up tragically.