Determine the Mood and Figure of the Standard Form argument. And then use the Chart of Valid Moods and Figures to determine whether the argument is valid or invalid. We stand here today outside this prison, lighting candles at an Eleventh Hour vigil, because we cannot allow injustice to be compounded upon injustice. And not even one person who might be wrongly convicted must be put to death. And so, at least one current resident of death row must not be put to death.
Justice demands a response that can be justified as well as possible at the time.
But justice cannot demand perfect justification. It cannot demand perfect knowledge. The conviction of Ted Bundy was as a consequence of a properly conducted trial. Therefore, Ted Bundy's conviction was not incorrect. You speak of the lack of perfect knowledge.