I think this is a *very* sensitive situation - as well as sad, tragic, devastating. Can we all try to regroup? To the OP, I'm sorry for your loss - I really cannot imagine what you're going through. At this point, assuming calm can prevail - and that you do want some help/advice - where are you now at with all of this? Not knowing where you might need help, oustide a professional dog trainer (which would be great) - I'm not sure what to offer.
I hope this thread can stay open. If not, so be it.