Closing arguments are parallel discursive, duelling narratives that seize on the same evidence and beg for different interpretations.
Lawyers do their oratorical best to characterize everything that's already been heard, diminishing the significance of some bits, emphasizing the relevance of other bits, and attempting to impose a logical – that is to say persuasively sound – summation on scattered events, testimony and forensic facts: a conclusion with the ring of truth.
Onus is ...