Israel has so far failed to extradite Grégory Chelli on charges related to death of Thierry Le Corre.
Suspected assassin of civil rights leader roams free in Israel.
Grégory Chelli, known as Ulcan, is accused of hoax calls, one of them lethal.
France seeks extradition of Jewish extremist operating from Israel
Joseph Ayache and three Jewish Defense League accomplices sentenced for violent attacks on Palestine solidarity activists.