I wasn't in France yet when Coluche died. This June marks the 25th year of his death. He created Les Restos du Coeur (an association to feed the needy).
I've tried over the years to listen to his many recordings and videos. He's one of the best comics --- and social commentators --- ever. As far as I know, his work has never been translated, but for those of you who can understand French, here's one of his sketches about being polite --- La politesse.