This is where it ends by Marieke Nijkamp

This is a school shooting story.  Kids and teachers at a highs chool are locked in an auditorium during an assembly It is known to be easy to get stuck in and hard to escape from.  The shooter is a student who was returning after an absence so already familiar with the auditorium.  He apparently believes that the world is against him and wants to get revenge, he even feels this way about his sister.  He is portrayed as very anger filled, and hateful towards everyone.  He had been bullied but I didn't quite understand exactly by whom about what.  The story is told by various students both caught in the auditorium and from the outside.  Its called gripping and compelling.  I guess I have just read too many similar stories.  I needed the students who were telling the story to have more depth.  I could not really understand this kid's irrational anger and act.  He did not seem to be a  scary kid without conscience for instance.  Grieving a loss of a parent does not usually result in shooting folks who had nothing to do with the death...
JDW 1/25/16