My dad met a corsican bandit (Antoine) on the run in Provence sometime in the late 60es (edit : probably 1964). They were staying at a place in the hills (in the Luberon), I've been there, it's remote, beautiful. He tells me how Antoine taught him to throw knives. He thinks Antoine had an affair/fling with my grandma's friend who was staying with them at the time.
After a few days, one morning Antoine is tipped off by some guy (?). A short time later, police with dogs show up, even a helicopter. He had already fled in the forest and wasn't found afaik.

My dad has kept a handful of 8mm reels from that time. I'm not sure if we see Antoine in them, I think he was being super cautious.

I looked him up, his name was Antoine Orsini. He was a suspected member of the gang La Brise De Mer : https://fr.wikipedia.org/wiki/Gang_de_la_Brise_de_mer
Assuming that's the same guy, at least the dates seem to coincide. Not big enough to have his own wiki article apparently...