The example of Joshua Katz brings up the idea of double jeopardy within the social sphere. Is this form of punishment ethical or fair? Also, while those transgressions were held to account by the norms of their day, were there other larger harms (entailing unwritten rules) to humanity that weren't adjudicated at the time which are now coming to the surface as part of a bigger aggregate harm?
It could be seen as related to the idea of reparations. In some sense, aside from the general harms of war—in which they participated—the South and slave holders in particular were never held to account or punished for their crimes against humanity. Though they may have felt as if they were. Where are those harms adjudicated? Because of a quirk of fate and poor politics following the Civil War and not being held to account, have those in the South continued perpetuating many of the same harms they were doing, simply in different guises? When will they be held to account? How would reparations look in the form of a national level of restorative justice?