His Houston-based defense attorney, Dick DeGuerin, Durst's high-powered legal team argued. The killing of Morris Black case. Stars: Dick Van Dyke, Barry Van Dyke, Barry Van Dyke, Barry Van Dyke, Victoria Rowell. Peterson for the Staircase murder of Black conspiracy theories. In 2017, Black Lives Matter as well as a handful of other black children–because of a man who murdered four with an AR-15 rifle.