Meanwhile, an unidentified Iraqi ambulance worker was killed Tuesday when he was shot by a group of American security contractors. The worker’s colleague, Abu Ali, described the attack: “We were driving here to deliver a case (to the hospital) when a bomb went off close to a passing convoy of Americans. They (the Americans) opened fire on him, shooting him in his heart. Their sniper shot him twice and one of them in his heart. What is his crime? We are ambulance drivers who help people during attacks. What have we done wrong?”