The parents have finally found closure.
But the general public hasn't.
In a dramatic twist, his paternal grandmother makes an appearance at the funeral she wasn't invited to.
I'm assuming that she took care of little William for a good couple of years before he was either returned or taken back by his parachute parents.
Naturally he will find it hard to fit into the family and be extremely difficult to handle.
Now comes the part which most people tend to brush aside .