possibly armed possibly not
lack of clarity fills him with guilt as he ponders on whether the act was justifiable or not
caesura shows his conflicting thoughts as the division mimics the uncertainty of the speaker
probably becomes before possibly shows that he wishes to believe the soldier was armed
anaphora shows he is focused on the possibility that his killing was unjustified- his mind is full of doubt
plosives create a gunfire sound to mimic ptsd
dramatic monologue as he is reciting is experiences at war