
    Commonwealth v. Johnson, Appellant.
    Submitted April 12, 1972.
    
      J. Graham, Bale, Jr. and John J. Dean, Assistant Public Defenders, and George if. Boss, Public Defender, for appellant; Carol Mary Los and Robert L. Eberhardt, Assistant District Attorneys, and Robert W. Duggan, District Attorney, for Commonwealth, appellee.
   Judgment of sentence affirmed.  