A drone video released by the Israel Defense Forces is said to capture the moments before the death of Hamas' leader, Yahya Sinwar.Israel Defense ForcesIsrael released a video on Thursday of what it said were Yahya Sinwar's final moments.The clip shows a drone hovering near a dirt-covered figure as they throw an object at the camera.It's yet another display of how drones have radically changed wartime surveillance.The video is chilling.