Snow Angels by Stewart O'Nan

I read about this on an NPR book review page. Actually, the reviewer was speaking of O'Nan's newest book, Emily Alone, but mentioned that if you have not read Snow Angels, you must. It was easy to find in the library so I checked it out. And glad that I did.
It is an unsettling story about death, murder, infidelity, poverty and more, and above all, a coming of age story about Arthur, a middle school boy in Pittsburgh, PA. The story starts on the day that his father leaves home and life changes dramatically for Arthur that day.
Arthur grapples with his parents' failed marriage and his feelings for Lila, a young girl with whom he rides the bus to school.  He also "deals" with the fact that he was the one to find the dead young child who wandered away from home one afternoon while her mom (his former babysitter and neighbor) slept on her couch. But Arthur really doesn't emote much about any of this; the reader can read between the lines and gather how these events are affecting Arty.
The story is gripping and quite short; I was able to read it in just a couple days. O'Nan is a gifted writer and I am anxious to follow up and read some of his other novels.