The Burgess Boys by Elizabeth Strout

This is a wonderful book by the author of 'Olive Kitteridge' and I recommend it highly.

The story largely takes place in Shirley Falls, Maine, which, like many Maine communities, has been poor for centuries, but has seen it's best days in the past.  Young people leave, and those who stay struggle to make ends meet.  The only newcomers to Shirley Falls are Somali refugees.  They are not interested in assimilating into Maine.  They maintain their native dress, their strong ties to their Somali communities and they are Muslim, which is new for Shirley Falls.

The Burgess children (Jim, Susan, and Bob) grew up in Shirley Falls.  They suffered a tragedy very early in their childhood--all three children were left in in the car by their father, and Bob, age 4, was playing with the gears, set the car in motion, and it rolled over their father, killing him.  A tragic loss with Bob, a small child, growing up bearing the guilt of inadvertently killing his father.  Which does nothing good for his self esteem.  Heaped upon that is his brother's constant reminder that he is a far better man in every way and always has been.  Which Bob readily acknowledges.  Susan is unloved by her mother, left fatherless, and grows into a bitter and unlikable woman.

The story takes place when the siblings are well into their fifties.  Susan's son Zach has thrown a bloody pig's head into a mosque during Ramadan--this is a misdemeanor crime until zealous prosecutors decide to prosecute him for a hate.  As we get to know Zach it appears that he knew nothing about Muslims prior to his prank, didn't realize they didn't eat pork, and didn't know what Ramadan is--no matter, the town is getting national press, and there is an ambitious prosecutor with political dreams.

Poor Zach--but it gets worse.  His esteemed uncle Jim actually does him more harm than good by coming to his aid, which leads to a dramatic unraveling of his previously charmed life.  He makes a remarkable revelation to Bob, which changes their dynamics as siblings in a serious way, and provides a lot of food for thought--which should be true of any really good book.