Why, what evil hath he done? (ti gar kakon epoihsen;). This was a feeble protest by a flickering conscience. Pilate descended to that level of arguing with the mob now inflamed with passion for the blood of Jesus, a veritable lynching fiasco. But this exhibition of weakness made the mob fear refusal by Pilate to proceed. So they "kept crying exceedingly" (perissw ekrazon, imperfect tense of repeated action and vehemently) their demand for the crucifixion of Jesus. It was like a gladiatorial show with all thumbs turned down.