I am at a loss of words at this point. If they have enough information to make a bold statement, that they believe she is "hiding out" then why have they not located her? I hope they are not solely taking the word from classmates as I have a hunch they could end up with egg on their face or this is a tactic being used to gain information. Regardless, if being used as a tactic, it is somewhat reckless as it may take away momentum of volunteers and spotlight away from town, IMAGINE THAT! So which tactic is anyone's guess.
With HD having potential history of some discord or disagreements, as anyone could have in their own respective families. It is quite possible that some information obtained could be that of past and even current "issues" HD may have been having leading to this new hunch of the LE. But the real question needing to be answered is that the reason for her disappearance, voluntarily or involuntarily? If they are going on the voluntary route, I am looking more at bio dad and family, maybe. At this point it is anyone's guess.