I think we won't hear anything more until after little Noah is laid to rest. The community needs to grieve for this little boy, but they also need some answers, and if answers aren't forthcoming after Wednesday, I'm worried this community will tear itself apart with rumors and accusations (our modern-day torches and pitchforks).
Even though I have a scenario in my mind of what may have played out, I will refrain from speculating anymore until after Wednesday. After that time, LE owes it to the community, if for no other reason to restore peace and calm, to give the public some answers. If, after a week or so, there is still no information released or arrests made, LE should be prepared to protect the three remaining members of Noah's family.