Well, in the book Al Neri had problems with a murder involving an afro-american people,(
Mario Puzo says Al Neri didn`t give a *** about them) he killed a black man when he was a cop and was sent to jail and Michael helped him to get out and joined the family.
In the GF Returns there is a clear discrimination and racist atitude from Mark Winegardner, everytime he reffered to afro-american people, he says "negroes" a non-polite atitude.
Isn`t Mark Winegardner a racist?