Exclusive: U.S. Troops Abandoned Me, Says Convoy Driver September 27, 2006 11:16 AM Brian Ross and Rhonda Schwartz Report: A dramatic home video obtained by ABC News shows U.S. troops apparently abandoned a truck convoy after it came under insurgent attack in Iraq last year. Three unarmed Halliburton truck drivers were executed at point-blank range once the troops left, according to a surviving driver, Preston Wheeler, of Mena, Ark., who taped the scene. "They was murdered. To me, they was murdered," Wheeler told ABC News in an exclusive interview to be broadcast Wednesday on World News and Nightline. THE BLOTTER...