concurring.
I again affirm the views in this area as expressed in my dissenting opinions in Commonwealth v. Garcia, 474 Pa. 449, 378 A.2d 1199 (1977) (Nix, J., dissenting) and Commonwealth v. Moore, 463 Pa. 317, 344 A.2d 850 (1975) (Nix, J., dissent*312ing). Under the formulation articulated in my dissents in Garcia and Moore, an instruction on involuntary manslaughter is necessary in the present case not merely because, as Mr. Justice Pomeroy points out, the record supplies a rational basis for such a result, but because whether the killing was reckless was a disputed fact in this case. See Commonwealth v. Gartner, 475 Pa. 512, 533 n.3, 381 A.2d 114, 125 n.3 (1977) (Nix, J., concurring and dissenting).