Is it possible that with the feud that was started between the Mullins and Haleys at Big Springs Cave in 1859, that it resulted in Edward Slaughter being 'killed by a feuding neighbor' in 1865?
Edward was related to the Haleys and lived close to some of those in the feud. I also believe that Edward's son, also named Edward, was killed in 1865 in Madison Co. All the Slaughters left Madison and Rockcastle and moved to Marion Co. KY before the 1870 census.
I have the booklet, "The Fight at the Big Springs Cave in Rockastle County, Kentucky" (An Investigation of the Haley Murder Trials 1859-1866) that can be obtained on the Rockcastle Co. website, or I'd be glad to look up info.
Any ideas would be appreciated!