rome october story refiled correct name marseille attacker brother switch previous story italian police say sunday arrest brother ahmed hannachi tunisian man kill two young women knife outside marseille train station week ago suspect terrorist act italian anti-terrorism squad arrest 25-year-old anis hannachi ferrara italy saturday even international warrant issue france police statement say oct. ahmed hannachi shout allahu akbar god great kill women french police source say ahmed hannachi shoot dead french soldier militant islamic state group claim responsibility attack name assailant italian police describe complex investigation anis hannachi track italy statement say hold suspicion complicity brother attack membership terrorist group information provide operation coordinate french judicial anti-terrorism authorities statement say brother marseille attacker arrest italy police