Arandor
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lol. Well, I don't think it's worth looking for clues in the fire, as the kamikaze killer perished himself.
But the murders of Gil and Morny should be investigated. Gil was killed with a blade (ninja?), and Morny was shot. Both were at Gil's house, which raises the question: what was Morny doing at Gil's house? I don't see any evidence of any other crimes besides Gil's murder. Was Morny involved with the mafia?
As for the notes, there's not much to say. Although someone was interested in Morse code, I don't remember who.
Be strong. Believe