Arras attack: the attacker claims that he specifically targeted Professor Dominique Bernard. “That was the main task,” “intentional,’ he agrees, referring to a plan drawn up “one to three weeks in advance.” Investigators particularly suspect his brother, 16, of complicity in assassination in connection with a terrorist enterprise.

The attacker's entourage concerns investigators for radicalization, S.E.C.’s Ambroise Vienet-Legué says.