كتائب عز الدين القسام
Abu was the second senior Hamas member to be killed in the 2008–2009 Israel–Gaza conflict after Nizar Rayan. He was killed by Israeli air strikes in Gaza on 3 January 2009. Zakaria al-Jamal was commander of Gaza City's rocket-launching squads, belonging to Hamas' military wing, Izz ad-Din al-Qassam Brigades.