I would hold them accountable as well as Westerfield, yes.
But I would have looked very closely at the hypothetical baby-sitters and their group of invited guests, PRETTY LONG, before I'd set out to pin it on someone down the street...FIRST.
If you listen to what I am saying, minion, then you will know the basis for most of the questions we have concerning the handling of the LE in this case, albeit the Van Dams were the parents and victims.
sw