Losing a child is our worst nightmare as parents. This family is living their nightmare. I respect that they have to find the path through their grief that they can best manage. If they are choosing to keep private the nature of the "accident", then so be it. Some may not agree with that decision. However, that doesn't really matter since they are not the ones who will see their child being laid to rest at the age of 12.
I believe as a community, we should support this family as best we can. Some are close enough to make calls on the family, take food, and run errands for them. Some of us will attend the services for them. So many have prayed or offered up the hope of their personal beliefs in healing. All of us can support them with our respect for their privacy.