SS, I have a feeling LE did have this information, they just did not share it with the media as Tim has. He says that LE backed up Ronald's claim that the bed was not slept in, so this was something both Ron and LE knew.
I'm really thinking here that both Ron and LE have been suspicious of Misty, and am even wondering if LE is aware that Ronald may have married Misty simply to try and obtain information (or even to just keep her around), seeing as they both agree she is the "key", in my theory of course (not fact).
Doesn't that help to make somethings fall into place for you? They may have simply insinuated they weren't able to question Ronald recently, actually I think they came right out and said that. Maybe it was all just for show...
I'm thinking of more and more things that make more sense in this scenario than any other...