The man known as "Carlos the Jackal" has been convicted over a deadly 1974 attack on a Paris shopping arcade and sentenced to life in prison for the third time.
Venezuelan-born Ilich Ramirez Sanchez is already serving two life sentences in France for murders and attacks he was convicted of perpetrating or organising on behalf of the Palestinian cause or of communist revolution in the 1970s and '80s.
As the trial wrapped up on Tuesday, the 67-year-old known worldwide as "Carlos" denounced "an absurd trial" for a 43-year-old crime.
Carlos had denied involvement, saying there was no proof against him.
Five judges found Carlos, the only defendant, guilty of throwing a grenade into a shopping area, killing two and injuring 32.