Adnan Al-Ghoul was the assistant of Mohammed Deif, the leader of the Izz ad-Din al-Qassam Brigades, the armed wing of Hamas. He was killed along with Imad Abbas in an airstrike while riding in his car in Gaza on October 21, 2004. Identified by the Israeli Defense Forces (IDF) as Hamas' top bombmaker, he joined the organisation soon after its creation in 1988. He then served as an assistant to Ezeedeen-al-qassam's top engineer, Yahya Ayyash. Wikipedia
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