 The Korean investigators cast doubt on the U.S. report 's suggestion of possible gunfire from among the refugees . Surviving documents said nothing about infiltrators at No Gun Ri , even though they would have been the 7th Cavalry 's first enemy killed @-@ in @-@ action in Korea . The No Gun Ri survivors denied it emphatically , and only three of 52 battalion veterans interviewed by the U.S. team spoke of hostile fire , and then inconsistently . 
