Pumpkinhead (1988) on Netflix

As a young boy, Ed Harley saw an evil demon kill a man. Many years later, Harley and his young son are running a grocery stand in Nevada that is visited by six city youths on their way to a cabin. While Harley is away on an errand, one of the boys accidentally kills Harley's son with a motorcycle. Remembering what he had seen that night years ago, and what he had heard, Harley pays a visit to a reclusive witch who helps him invoke that demon - known as Pumpkinhead - to avenge his son's death. As he sees the youths being killed, one at a time, through the eyes of the demon, Harley discovers that a horrific price must be paid...