The theft of the precious object, once owned by an Egyptian queen and later sold to satisfy her creditors, was the latest in a string of high-profile museum losses.
The National Museum of Korean Democracy, which opened last year, documents an era of brutal suppression. But that dark history has resurfaced in troubling ways.
Yoo Dong-woo was among hundreds of pro-democracy activists who were tortured at the Namyeong-dong Anti-Communist Interrogation Office in Seoul. He has returned often to what is now the National Museum of Korean Democracy.
The Italian military police said that art collectively valued at more than $10 million had been found five months after being taken in a nighttime heist near Parma.