If it was fiction you would not find it in the least bit credible. The author tells the story with a huge amount of empathy to the victims, and as a consequence the self serving drivel of Kennedy is important to the book as a whole in that we can feel free to almost ridicule him and his pathetic excuses, therefore leaving us free to be outraged, as we all should be, at the nasty, callous murder of a child,and his self-fulfilling excuses.Bad child-hood. blah blah blah!YEAH, ME TOO...DOESN'T MAKE ME DO THAT! .And as to the repercussions of that night ... I will not spoil the story but it is important to understand who the real victims are.And for them it never ends. The author conveys this admirably.