(MSNBC.MSN) — The elaborate mission to recover a moon rock led NASA agents to one of the most down-to-earth places: a Denny’s restaurant in Riverside County.

But at the end of the sting operation, agents were left holding a speck of lunar dust smaller than a grain of rice and a 74-year-old suspect who was terrified by armed officials.

Five months after NASA investigators and local agents swooped into the restaurant and hailed their operation as a cautionary tale for anyone trying to sell national treasure, no charges have been filed, NASA isn’t talking and the case appears stalled.

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