text: I know you know you're wrong here. Why not acknowledge that and regain some dignity?
  
  In case you really are as ignorant of Catholic teaching as you are pretending to be: No one but God knows another's person's heart or soul, and no one knows what was in the heart and soul as a person's human life is ending. The briefest moment of remorse is sufficient for salvation and thus for sainthood -- not necessarily of the canonized kind, but sainthood in the only way that really matters. You can 'clarify' your false assertion by acknowledging that you don't know that MLK was 'unrepentant'.  Obviously, you don't and can't know that -- so acknowledging that you don't ought to be a no-brainer.