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As you know=) I don't see the point in trying to convince you.
However, I'll note for the female players: the incident took place in Vegtham's house, where the phantom Crabby came to check on his comrade, and that's where he was killed - hence the charred sand and the chain mark (a hint that the killer is from the underworld and who specifically) and pieces of the unfortunate Crabby (the ectoplasm of the phantom).
