An Egyptian terror group linked to ISIS has executed three men including a Coptic Christian as a warning for supporting the country's armed forces. Nabil Habashi Salama, 62, a member of Egypt's minority Coptic Orthodox Church, was shown being shot in the back of the head in a video released Saturday. In the footage, a militant with his face blurred, an AK-47 slung across his chest and index finger raised to the sky, warns the 'Christians of Egypt' that 'this is the price you pay for supporting the Egyptian army.' An ISIS-linked terror group in Egypt has executed a 62-year-old Coptic man 'as a warning' to the country's Christians not to support the armed forces