Petition for writ of certiorari to the District of Columbia Court of Appeals is granted limited to the following question: "Whether the petitioners' convictions must be set aside under Brady v. Maryland, 373 U.S. 83, 83 S.Ct. 1194, 10 L.Ed.2d 215 (1963)." The case is consolidated and a total of one hour is allotted for oral argument.