Olds, your whole premise seems to be that there is no use in discussing whether Ringo's death was a suicide or homicide and therefore no use in discussing who the possible killer was if it was the latter. I believe there are so many unanswered questions about the death scene and because Ringo had so many enemies that the possibility of homicide must be considered. I think that the strongest argument for suicide yet will be available soon when Steve Gatto finally publishes his long-anticipated revision of his John Ringo bio.
In the meantime, it's things like this that keep me speculating:
https://chroniclingamerica.loc.gov/lccn/sn94052364/1890-03-22/ed-1/seq-4/#date1=1770&sort=date&date2=1963&searchType=advanced&language=&sequence=0&index=14&words=John+Ringo&proxdistance=5&rows=20&ortext=&proxtext=&phrasetext=John+Ringo&andtext=&dateFilterType=yearRange&page=1