Ficior declined to speak to reporters after he was charged Thursday, but had told The Associated Press in an interview in June that only three or four died while he ran the camp. In the interview, he was unrepentant, and said his former prisoners were Nazi supporters during World War II who deserved to be incarcerated.
Ficior is the second former prison commander in Romania to be charged with genocide. On Sept. 3, prosecutors charged 87-year-old Alexandru Visinescu for his leadership of the Ramnicu Sarat prison from 1956 to 1963, where Romania's elite were incarcerated.
Andrei Muraru, head of the Institute for the Investigation of Communist Crimes, said Ficior and Visinescu can't be imprisoned in Romania because of their age.
"But the fact that they (can get) a conviction for what they did 50 years ago ... is very important in a democratic society," Muraru said.
In September, investigators dug up five skeletons from unmarked graves near Periprava. There were no coffins, clothes or personal possessions next to the bodies.
About 3,500 former Romanian political prisoners from the 1950s and 1960s are still alive, down from 40,000 who were alive when communism was overthrown in 1989.