Translating Alon Lee here: "This is what Jabalia in northern Gaza looks like today. A city of 200,000 people, completely destroyed. Every house, hospital, every school — destroyed. Every road  bombed or bulldozed. Residents were killed or forcibly expelled. If there were any hostages there, they have almost certainly been killed by the bombings. 

There is only one conclusion as to the purpose of the destruction of Jabalia: destruction itself."