As best as I can tell, the attached document shows the various options the PCs have and the way in which they might work through the scenario. I've shown the "best" path with a wider arrow. I'm a little unsure about what happens if the PCs attack the guards while under house arrest in the inn, so that's not currently shown as an option. reaping_decision_tree.docx
I definitely agree that this scenario needs a flow chart! However, I think you have one path missing. As long as the PCs didn't kill any guards, they can go from House Arrest to the Second Murder, and from there to the Pumpkin Patch.