Mannion tracks a killer who targets interracial couples, one of which was a black councilman married to a white woman. At the office, Ella uncovers incriminating evidence that suggests an officer up for a commendation may be an arsonist. Also: Nancy arrests her estranged father on charges of soliciting a prostitute; and Temple reluctantly helps a junkie kick his drug habit. Reese: Jeff Parise. Newman: Michael Spound. Victor: Carmen Argenziano. Brown: Alexandra Barreto. Mason: Jack Orend. Eva: Ursula Brooks.