 He attributed their violence to their Southern heritage.This view was repeated in a separate study by Elmer R. Akers and Vernon Fox, sociologist and psychologist, respectively, at the State Prison of Southern Michigan.Although most of the black men they studied had jobs and had been in Detroit an average of more than 10 years, Akers and Fox characterized them as unskilled and unsettled; they stressed the men's Southern heritage as predisposing them to violence.