Rumple seems very likely. On the other hand, he had no problem parting with the coin — didn’t seem to be too concerned about whatever EQ was planning to do with it. Rumple’s general MO in relation to other villains is this: “here, have this thing I hoarded, now give me what I want and leave me and my family out of your armageddon plans.” Since he’s not a dumb man, and he knows EQ (arguably, they’re always trying to think three steps ahead of each other) I don’t think he’d so easily part with the coin if that would lead Charming to discover he assassinated his father — just because I don’t think Rumple would want the inconvenience of being bothered by Charming clan’s righteous anger.
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