We Need to Talk About Kevin

I can't think of a book that was harder for me to read than We Need to Talk About Kevin. Nor can I think of a book that I've been more interested in discussing. I don't want to say that I found it to be a perfect book. The father was strangely optimistic in the face of the savage Kevin presented. And day-to-day Kevin is not as savage as one might expect. It's the why why why every page generates that I found compelling. Was Kevin born to kill? Or was it the dangerous combination of lackluster mothering and over accepting fathering that led to Kevin's acts? Is Kevin's mother to be trusted as narrator of the story? Or has she given all the events of Kevin's life an evil spin? What causes children to go bad?