Illustration by Brian StaufferWith little fanfare and hardly any spectators, the trial in the case of Graciela McKay vs. DISD wraps up this week in U.S. District Court, with a verdict expected as early as tomorrow. McKay is the Preston Hollow teacher who filed a federal lawsuit against the district and the school's former principal, Teresa Parker, in which she alleges that district officials retaliated against her for calling attention to what District Judge Sam Lindsay ruled was deliberate segr