I don't see what the big deal is

A teenage boy on Monday won a "divorce" from his father, who killed the boy's mother six years ago while the child slept in the next room.
 
That man is lucky that divorcing him is the only thing the kid did.  I mean the father killed the kid's mom, that is a prime situation for a revenge flick.  The kid probably liked his mom better than the father anyways. 

In the end, it is a great move for the kid, though since it is so unusual the man still might be able to find a few ways of getting through the system.  The father might have copies of important documents (ie birth certificates) that prove he is the father, but if that happens and the father is found out, he could be sued and thrown in jail.

cube