Danganronpa: The murder suspect is really nice!

You see, what you first have to realize is that "Byakuya" has 7 letters in it. What else has 7 in it? Days of the week ending in "Y". And you know what else ends in "Y"? Money. That's right, follow the money. MON-okuma? MON-ey? It's so obvious once you know what threads to follow. Am I alone in this?! WHY IS NO BODY ELSE TALKING ABOUT THIS!?!