القدس العربي
Nawar worked at a legitimate travel agency under the alias "Seif el-Islam Ettounsi" while in Tunisia, where he constructed the "crude" bomb for the attack himself. During this time, he often stayed with his uncle Belgasem Nawar, who purchased the truck that was eventually used in the bombing. Just before the attack, he mailed a letter to Al-Quds Al-Arabi in which he took responsibility for the attack in the name of al-Qaeda.