[OLT]

if the parents went to court, the whole world will know which boy did it.

Can't be whole world at the court. The boy also appeared at the court. No diff.

the boy was trialed thru video link.  his identity is protected. but once the parents attend court, they will be captured on videos outside court. 
and knowing how fast netizens csi pple. it wouldnt take long to know the identity of the boy.