How does the author characterize Miyamoto

Kabuo Miyamoto is a Japanese-American man, the eldest son of the Miyamoto family, who grows up picking strawberries on the Heine farm. He is an expert at kendo, and he goes to fight in the European theater for America, just after marrying Hatsuo at the relocation camp Manzanar. He is the defendant in the first-degree murder trial after the death of Carl Heine, Junior.