In the story “A Good Man is Hard to Find” the Grandmother is the one who caused the death of the whole family. She was the one that got the kids into a frenzy to see the “old plantation” when in reality she did not even know where she was. The Grandmother took them down the old dirt road where the Misfit was, she also flagged him down and then blurted out who he was when he came to help them. So I think that the beginning should have changed, so that the Grandmother had stayed behind and the rest of the family went to Florida. That way Bailey’s plan on not stopping till they got to Florida, or the cat causing the accident and the Grandmother never recognizing the Misfit ever happened.
And the one event that caused the story to turn out like it did was when the grandmother was talking about the plantation and took them down the dirt road. If they would have kept going down to Florida the family probably would not have met their demise.