What I find peculiar is at first a lot if info by the Police and now nothing. At first information about a 9mm casing at bottom of stairs. Dogs heads cut off to attain slug and now no mention of what they found or not found. The investigation obviously has a new master. I'm not sure but I believe that every new gun sold has a sample bullet fired with ejected casing that is kept by the manufacture and another same object is part of the gun package. Compare that if it's true.