It is a tragic accident that have touched all parents in this school. I'm one of these parents.
we do not criticize anyone, or blame anyone..
Like many said, anything can happen... It's God's will.

I'm sure that the little girl has found her place in heaven.
I'm really worried about her parents, especially the mom and the brother, who saw the accident.
I'm praying for them to try and get over it go forward in their lives... not forgetting that they have another child that is mourning also...
I pray for them...

God bless you all,your families and kids.