Enthralling ... Mr. Verini’s aim is a vital one: He seeks to go beyond the war crime to give shape and dimension to the everyday Ukrainians fated to become atrocity statistics at the theater ... Takes great care to convey to readers how the denizens of the theater cut across social, economic and cultural classes ... If, at times, the narrative structure sags and the character portraits blur, it’s in service to the immensity of hope and defiance extinguished by the airstrike.