Video shows dozens of bodies after alleged attack at UN-run school in Gaza

I'd be extremely surprised if it's false. But there's a lot of combat nearby - Hamas fighters fled from Gaza City to Jabaliya and Zeitoun where they don't have a realistic escape route, and large Israeli forces who are actively engaged in combat through a dense urban area (quite literally at this very moment).

Not saying it's not tragic, but these deaths could have been prevented by civilians evacuating to the southern Strip. UNRWA hold some responsibility for offering their facilities as shelter when they know full well that their facilities have been used for military purposes in the past and are liable to be legitimate military targets as a result.