Hamas said on Monday that its guards executed an Israeli captive and injured two others in two separate incidents in Gaza. “Two guards assigned to guard Israeli hostages killed an Israeli captive and wounded two others in separate incidents,” Abu Obeida, the spokesperson for Hamas’s armed wing, the Al-Qassam Brigades, said in a statement on the messaging app Telegram. “Attempts are underway to save their lives,” he said. He added that the Israeli government bears responsibility for what he described as the “massacres” being committed in Gaza and the reactions that “affect the lives of Zionist …