It is appropriate to mourn with those who mourn.
The Chapman family lost their precious 5 year old in a tragic accident. Although this was a surprise to them and everyone else, it was not to God. Our days are already numbered before we are born, not that that makes grief any easier. I think the most important thing to remember is that we need to live each day as if there is no tomorrow. The only way to do that with no regrets is to live to the glory of God.
The Chapman's little girl was adopted from China. This family was willing to live for the glory for God as they rescued this baby from a life in an orphanage to bring her into the family of God. Can you think of anything more honoring to God and rewarding?
May we especially pray for their 16 year old son, he is the one in real need of comfort and peace.