I have it on good authority, but from a friend who heard it from friends or others. But I think it’s still a trustable source because it’s not super difficult to prove, even if it’s hearsay lol

there’s also some interviews of Red Warriors on youtube though in French, including Julien. He seemed more like an anarchist than a commuinist, he said he tried to join PCF but they wanted to give him reading and courses and he didn’t care much for it.