He misrepresented the story of Ignatius's deposition with unblushing lies, and he at least connived at Ignatius's ill-treatment in banishment.
showing them how the patriot, Barsad, was a hired spy and traitor, an unblushing trafficker in blood, and one of the greatest scoundrels upon earth since accursed Judas--which he certainly did look rather like.
an unblushing admission of guilt
unabashed; unblushing