These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV definitely, as it was the end result of his Sanity Slippage, which was pretty frightening.
Tear Jerker: Many moments. Particularly standing out are Johnse's wordless but very emotional farewell at Roseanna's grave and Cottontop when his father dies, not to mention when Cottontop dies himself, as a scapegoat.
The murdering of the three McCoy brothers, particularly since the youngest of them was basically innocent and had already tried to defuse the feud partially by telling Roseanna his brothers had Johnse.