Complex sentence: In the last group, Lt. Weaver and Sgt. Duquesne argue about the route, are consequently captured, and placed with other American prisoners where most are massacred by SS troops at Malmedy.
Split into simpler sentences: In the last group, Lt. Weaver and Sgt. Duquesne argue about the route, are consequently captured, and placed with other American prisoners. Later, most are massacred by SS troops at Malmedy.