He suffered a bullet wound to his leg in battles against Jabhat al-Nusra in the city of Deir Ezzor . It was several months after this wound healed that he began to train to carry out the attack in Brussels . The Islamic State confirmed that he was responsible for preparing all of the explosives used during the November 2015 Paris attacks and the 2016 Brussels bombings
2016 Brussels bombings
2016 Brussels bombings
Najim Laachraoui