Giorgio Pietrostefani (born 1943) was a leader of Lotta Continua.
In 1988 the pentito Leonardo Marino [it] accused him (along with Adriano Sofri) of ordering the 1972 murder of Luigi Calabresi.
[1] Pietrostafani was convicted in 1997, along with Sofri, Ovidio Bompressi [it], and Marino himself (who went free in exchange for his testimony).
[1] While free pending an appeal,[1] Pietrostefani fled to France, which refused to extradite him under the Mitterrand doctrine.
[2][3] In 2021 the French government arrested him, along with six other left-wing activists convicted of crimes in Italy.