For context, Siné had said a few years before, on the radio, just after a bomb against a Jewish restaurant, in substance, « I am an antisemit, and I am not afraid to say it [...] I want every Jew to live in fear, unless he's pro-Palestinian [...] Let them die! [...] They should be put to death. »
He later claimed to have been drunk.
Source: http://fr.wikipedia.org/wiki/Affaire_Sin%C3%A9#Radio_Carbone...