
    No. 75-5687.
    No. 75-5696.
    No. 75-5828.
    Walker v. United States; Roberson v. United States; and Duncan et al. v. United States.
   C. A. D. C. Cir. Certiorari denied.

Mr. Justice Brennan, Mr. Justice Marshall, and Mr. Justice Powell would grant certiorari.  