Israel says he planned out the attacks by Hamas on the 7th of October 2023 alongside Mohammed Deif. He was put on a terrorist watchlist by the US in late 2019 and EU in late 2023 respectively.
It is believed by Israel and the United States that he was killed in an Israeli airstrike during Israel–Hamas war in March 2024. Hamas has neither accepted nor denied his killing. If he is alive, he will replace Yahya Sinwar's position Hamas leader in the Gaza Strip in case he dies and Mohammed Deif's position as the main leader of the Izz ad-Din al-Qassam Brigades.
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