This is what I would say to Billie, if I could;
Lots of people want you to get your daughter back safely. Some of us think you might be able to help. I know you do not believe that Shawn would ever hurt Hailey. Please ask him if he will go into the police station, with his attorney if he wants, and talk to the detectives to try to clear up any possible misunderstandings about where he was on Monday Dec. 27th and Tuesday Dec. 28th and what he was doing. Lots of people have lawyers and still talk to the police, they just want the lawyer there to help them.
If Shawn can do this, then the police would be able to clear him and move on to try to figure out where Hailey is. And if he won't do this, you should probably set aside your personal feelings about Shawn for now, and go to the police station yourself and tell them anything you can think of that might help. Any places that were special to Shawn, or places he used to go with his friends, or to hunt. Search your brain for any possible place Shawn likes to go.
Please try to help the police help find Hailey, Billie. Please get word to Shawn to help too. That is the only way the police can change their focus.
We all want Hailey home safely.
Just my opinion, of course.