IMO LE wants this case solved BADLY. It is their job. I think that if they really had any information to release (other than the possible vehicles of interest) that could possibly be of help to this investigation they would do it.
I don’t think there is any secrecy here, yeah perhaps maybe some leads they are looking into, but nothing concrete they can really give us. I truly believe they would if they could. And I very well understand the necessity of LE keeping things close to the vest to protect the integrity of the investigation, but I just do not believe they have a lead on the suspect and are just watching him, etc, nothing like that.
I believe LE is doing their darn best but unfortunately their trail is cold and no leads are panning out, JMO.
If they had a lead on a suspect FBI/SWAT would have already stormed that place like nobody’s business. And there would be a picture of the suspect on the FBI’s Most Wanted List, moo.