Testimony from the officers involved in the attack, which has been concealed from the public until now, confirms for the first time that the children — four cousins ages 10 and 11 — were pursued and killed by drone operators who somehow mistook them, in broad daylight, for Hamas militants.

The testimony raises new questions about whether the attack, which unfolded in front of dozens of journalists and triggered global outrage, was carried out with reckless disregard for civilian life and without proper authorization. After killing the first boy, the drone operators told investigators, they had sought clarification from their superiors as to how far along the beach, used by civilians, they could pursue the fleeing survivors. Less than a minute later, as the boys ran for their lives, the drone operators decided to launch a second missile, killing three more children, despite never getting an answer to their question.