He's not the one, ne?

I don't want to believe that Isao did it even if I have a strong feeling that he did. I won't forgive him if he framed Mitsuru for murder on his behalf. The latter must be very sad to believe that one of his brothers trapped him but I really dislike to think that way.

But Isao keeps hearing Bunzo's voice in his head so is his consience torturing him? I mean wouldn't it be too obvious this way?

Even Ryo is suspecting him after he saw him laughing like a psycho in front of Bunzo's picture. Shouldn't they take that picture down or something?