Is there a single course of conduct engaged in by a speeding driver whose car struck and killed a pedestrian and continued to speed away?

If the 'single course of conduct' test were applied, there might be said to be a single course of conduct engaged in by a speeding driver whose car struck and killed a pedestrian and then continued to speed away. However, convictons in a single trial followed by separate sentences for manslaughter and for failing to stop and render aid were affirmed in People v. Steinbach, 166 Cal.App.2d 307, 333 P.2d 147, and in People v. McKee, 80 Cal.App. 200, 251 P. 675.