Thats true, but I wasn't really thinking along those lines and here's why. If it was some random guy who saw her on her own and decided to drag her in the bushes to attack her, then where is she now? If that had happened her body would have been found in the local vicinity (which you'd assume has been thoroughly searched by now). Her body isn't in those fields directly in that area. Think about how heavy a person is, even someone of slight build.
Not a chance you'd be able to carry her off somewhere afterwards to hide her, you'd need a vehicle to do that.
She’s quite a small woman and looks slim, I think a man much bigger than her could definitely carry her, it’s happened in cases before. There are still buildings within the local vicinity that she could be in. If they haven’t searched inside all buildings and just knocked the doors of occupied caravans then she could easily still be in any of these places.
Sounds like PF is finishing up, having concluded she isn’t in the river but police will continue to search.