Um, like Dazai-kun mentioned, we don't know for sure if the screwdriver was bloodied by accident or self defense. But, um... we do know there was blood near the sigil. And there was oil on the gloves and the screwdriver.

So, um... this might be a dumb question, but what about the culprit's clothes? There was... a-a lot of oil, in the Tool Shed, and that's where Sho says he left the gloves after he used them on Wednesday. But the culprit only got rid of the gloves, and this cloth for some reason.

Did they... not have to get rid of their clothes? Were they able to stay clean, aside from their hands, somehow?