[Ahem! The detective is going to talk. He looks pretty serious, maybe because he is confident about what he'll say]

First than all, it has been confirmed there's absolutely no way this was a suicide. Sonozaki-san's death was the work of somebody else, who then tried to mislead us through the crime scene.

The true cause of death is exsanguination from a wound to the thigh. The crime weapon hasn't been found, but there's no doubt Sonozaki-san died in the Art Room, as shown by the large half-cleaned bloodstains Lynne-san and I found.

Now that these basic points has been clarified, let's start this debate.