But that's the thing. People on the "Superman killed the warlord" side can support their claim through 1) the logical outcome of the event depicted on screen, along with 2) the absence of a shot of the surviving character, and 3) any explicit stance regarding killing on Superman's part. The people on the opposite camp have a conclusion reached through omission (no dead body shown), but no facts to counteract the conclusion reached by logic. You can't get exasperated about others being unable to reach your conclusion when it, however valid, is a willingly made logical leap.