LE has had the pings for weeks. Yet we have not really seen or heard of much searching being done, until the last 10 days or so, and we don't know (do we?) where they had the volunteers search.
I don't know what to conclude about the way LE is handling this case. I don't think that LE meant to name SA as a suspect when they did, I think Pete let that one out of the bag. I hope they have more on him than we know about; we see gaping timelines and lies about where he was and the whole job thing, even setting aside his "hobbies." But we also know that none of that means that he did anything to Hailey.
Please LE-don't let this case go cold...
Please Billie-ask Shawn to speak to LE, take his lawyer, if he wants, but just to go in and clear himself, if he is innocent. You think he is innocent, so tell him that and tell him you need him to do this. And you do the same.
If he can't or won't...then you need to work closely with LE to help figure out where Hailey might be by going over every place Shawn liked, talked about, went with his cousins, hung out, told you about, etc...
This is how you can help your daughter.