Due to the fact that the location of the vehicle found is not being released and the fact that the LE are saying with some degree of confidence (IMO) that they believe Sierra is alive, then I'm guessing they have a whole lot more information than we think and I think the water searches are proof of that, too. I've never heard of a person going missing and LE just randomly searching every creek, pond, lake and river in the county with side-sonar so methodically.
I'll bet my last dollar they have a person of interest, whether or not that person is still in the area or not, I have no idea, but there are going to be fingerprints, hair, dna in that car.
I just had the thought that this could all turn out to be a runaway case...not that I believe this to be true, but what if it is? What, exactly would happen to Sierra? I know if she ran away and people were intentionally hiding her, they would face charges, but what about her?[/QUOTE
My thoughts are total opposite. LE believes this to be an abduction and the FBI is involved that does not say runaway to me. JMO