Justice? This was simply an innocent family which the mother got caught in a trap and her family did all they could to help her. In the end, though, an anon farmer ended the last two survivors lives.
well, this reinforces the theory of why there are no more nice yukkuri left... It's because ALL the nice ones have already been killed! Lady luck can be quite picky at times, may the family take it easy on death. *manly tears*
Edit: silliest typo ever, "warm" instead of "farm".
Not likely, remember that in the previous page it was mentioned that the farmer was from a farm where "They" considered yukkuris pests, so someone is guarding while he's out.