So composed were the militants that they methodically checked their victims for any sign of life after the initial round of blazing gunfire. Those still moving or breathing received a bullet to the head or the chest, the witnesses said. When the ambulances arrived they shot at them, repelling them as got back into their vehicles and fled.

The militants were shouting Allahu Akbar, or God is great, as they fired at the worshippers. The children were screaming.

https://www.stripes.com/news/middle-east/survivors-recall-attack-on-mosque-in-egypt-s-sinai-as-death-toll-rises-1.499424