 Complete the following phrase:  A first major incident ensued early in 1927, when members of Hermann Hiltls Frontkämpfervereinigung Front Fighters Union  a paramilitary association likewise affiliated with the conservative camp shot and killed an eight-year-old boy and a war veteran marching with the Schutzbund in a peaceful counter-demonstration in Schattendorf Burgenland. In July, three defendants in the case were acquitted, which led to outrage in the left-wing camp. On 15 July 1927, a 