Hint 3: The narrated text speaks the truth

Oh, looks like they figured it out...
They wouldn't get anywhere if they didn't.
Are there any deaths confirmed by the narration?! That would mean we can say for sure that the person in question is dead!
And that automatically means they aren't the culprit.
And on top of that, it means we can trust the purple!
Let's look for deaths that are mentioned in the narrations. Ones that aren't vague about whether the person is alive or dead, like 'X was lying on the ground'.
Yes, let's read through it once more from the start!