When you pass out, there is a chance that either harvey, marlon, or linus. If linus helps you, he says that he saw someone trying to steal your money, but who would try to steal your money. I think it couldn't have been any outsiders of the town because literally nobody goes to pelican town. So that leaves the main townsfolk, but who? I dont have a lot of suspects, but I think it's Pierre, though I may be biased.