Paris public prosecutor François Molins says the man arrested as the Brussels Jewish Museum shooting suspect, French national Mehdi Nemmouche, 29, trained in Syria:
During his last stay in jail he was noticed for extremist [Islamist] proselytism. On December 31, 2012, three weeks after he was freed, he travelled to Syria. He spent over a year in Syria, where he seems to have joined the ranks of combatant groups, jihadist terrorist groups.
Nemmouche is being questioned by the DGSI, which can hold him for up to 96 hours or 144 hours if investigators feel he poses an imminent terrorist threat.