We are all witnesses of a murder. But who is the murderer?

This game is inspired by Ryunosuke Akutagawa's famous novel "In A Grove". It is a game about deduction and bluffing. We are all witnesses in a crime scene and our goal is to find the murderer. It is not easy to find it out though, since everyone saw something else and sometimes don't accuse the same person. Can you solve the case?