In Freiburg a graffiti was put up with the slogan "Ni oubli! Ni pardon! Pierre Overney est immortel!" (Not forgotten! Not forgiven! Pierre Overney is immortal!).
Pierre Overney was a militant of the Gauche Proletarienne (Proletarian Left) in France.
While distributing flyers in front of a Renault-factory in Paris, mobilising for an antifascist demonstration, he was shot by a security guard on February 25, 1972.