Who is The Accused (From The Allegory of the Black Eunuchs) from Soul on Ice and what is their importance?

The Accused is an elderly man who is never called by name. Cleaver and two of his prison mates verbally attack the man based solely on his appearance and what that means to them. The man launches into a tirade about the fate of American blacks, the circumstances that brought the culture to this point and the reasons more bloodshed won't solve the problem.