
    Commonwealth v. McKnight, Appellant.
    Argued June 15, 1971.
    
      John W. Packet, Assistant Defender, with him Andrea C. Levin, Assistant Defender, and Vincent J. Ziccardi, Defender, for appellant; Milton M. Stein, Assistant District Attorney, with him James D. Crawford, Deputy District Attorney, and Arlen Specter, District Attorney, for Commonwealth, appellee.
   Judgment of sentence affirmed.  