As others have said, and eloquently, even thought the search did not locate Suzanne, it was no fail. In fact, it brings a full clarity -- only someone who has hidden her this well has a reason and that points to one person alone.
I suspect we'll come to learn eventually that somewhere between about 1 and 5 am on Mother's Day that someone used a vehicle without tracking....
Still, dogs did hit upon various locations. Only that someone knows why. Chances are that that someone was at all those locations. Maybe digging deeper. Maybe doing legitimate work but with an illegitimate Bobcat, laced with the scent of death.
We can't forget that that someone was likely following along closely to the events of the past six days. With cameras, plants.... he got an education too. Bet he didn't know his Bobcat was leaving sign all over the place. He may rethink his resting place. An unnamed POI with time at his disposal may be inspired to move about the land freely, believe no one is watching and try to outthink himself.
EVERYWHERE he goes, EVERYTHING he touches, EVERY ROCK HE MOVES has the potential to be A BEACON.
This isn't over.
But it WILL be over for him. In time.
We wait.
JMO