Growing up in an ethnic suburb in Cleveland, Aaron Milavec was an impressionable adolescent whose religious and cultural influences made it natural for him to pity, blame, and despise Jews. All of that began to change in 1955 when Mr. Martin, a Jewish merchant, hired Milavec as a stock boy. Milavec's initial anxieties over working for a Jew surprisingly gave way to profound personal admiration. This, in turn, plunged Milavec into a troubling theological...