Well the good news is, they can't leave town. Bad news is as you said, there's tons of places they could be hiding out. Empty houses, apartments, the streets, the forest.
I'm going to see if Veronica can sit with Mary in the hospital then I'll head over.
[Private]
We have to keep mom and dad out of the search. The kids catch wind that they're involved, there's no guessing what they'll do.