Concurring Opinion by
Mr. Justice Roberts :I join in that part of the majority’s opinion holding there was probable cause to arrest appellant.
However, I agree that appellant is not entitled to a new trial on account of the trial court’s failure to charge on voluntary manslaughter, only because appellant did not request such a charge, did not except to the trial court’s failure to so charge, and did not raise this issue in post-trial motions. Issues not properly raised in the trial court will not be considered on appeal. See Commonwealth v. Watlington, 452 Pa. 524, 306 A.2d 892 (1973); Commonwealth v. Agie, 449 Pa. 187, 296 A.2d 741 (1972); Pa. R. Crim P. 1119(b).