Israeli officials are casting doubt over whether a prisoner exchange set for Saturday will proceed as planned, after Israel claimed one of the four bodies handed over by Hamas on Thursday was not the body of hostage Shiri Bibas. Hamas says the remains appear to have been mixed with other human remains taken from the rubble left behind by Israeli bombardment. Israeli President Isaac Herzog called it a “shocking and horrific violation of the ceasefire agreement,” and Trump’s special envoy for hostage affairs, Adam Boehler, threatened Hamas with “total annihilation.” Hamas is due to release six living Israeli hostages Saturday in exchange for hundreds of Palestinian captives held by Israel.