Maybe some more seasoned WebSleuthers can tell me - at this stage in the investigation, will LE be tracking the children’s online activity?
The question of whether Tylee said any kind of goodbye to her friends is really good - if she knew she was being secreted to a compound somewhere, it looks she had friends online, even if not local (seems like Lori moves a lot), she’d have wanted to say farewell to - even if not explicitly. This is assuming Lori’s induction into the cult involved the kids, which I suppose is the best case scenario at this point