KHAN YOUNIS, Gaza Strip (AP) — Israel’s prime minister says “there still isn’t absolute certainty” that Hamas’ shadowy military commander was killed in a massive airstrike in southern Gaza. Local health officials say it killed at least 90 people. Hamas denies that Mohammed Deif was nearby during Saturday’s strike. Deif is believed by many to be the chief architect of the Oct. 7 attack that sparked the nine-month Israel-Hamas war. The airstrike came at a delicate time in cease-fire efforts. It took place in an area the military had designated as safe for hundreds of thousands of Palestinians.