I've been talking about the possible theme of the wise, just criminal Jesus suffering the same (actually worse with the scourging) crucifixion penalty as the arch criminal Haman.
I would like to suggest that perhaps Pilate's apathetic approach in Mark to the problem of Jesus is modeled after King Ahasuerus in the Book of Esther. Consider the similarities when Leonard Greenspoon comments that:
But there is more. King Ahasuerus is portrayed as indifferent and indolent rather than treacherous and tyrannical. When, for example, Haman proposes that “a certain people” within the king’s empire were not following established laws and customs, the incurious monarch gives Haman the power to destroy them—without even asking who they are (Esth 3:1-11).In Mark, Pilate interrogated Jesus, but Jesus did not claim that he was King of the Jews, but sarcastically said "You says so," Pilate then, apparently unsure about what to do, simply petitions the crowd (What evil has he done?), and so simply agrees with the crowd's cries for execution.