In 1840 census I find Turpin Haley living next door to my gggreat grandfather, Edward Slaughter who was related to the Haleys through his mother's family. I think he named my ggrandmother, Rhoda Ellen, after one of the Haleys named Rhoda, maybe even after your Rhoda.
Here is what I found on James Turner about the trial on Friday the 21st of Septemeber 1860, the 11th day of the court term. The defendant was William Haley. "And on motion of the defendant, James Vannay, James Turner, John G. Myers, James Haley and Fred Haley acknowledged themselves indebted to the Commonweath in the sum of $500 each to be void on condition they appear in court on the first day of its next term as witnesses in behalf of William Haley and would not depart without leave of the court."
I didn't find mention of James again.
William Haley was found not guilty, but Archibald Haley, only 21, was found guilty of manslaughter and sentenced to 3 years in prison in Frankfort where he died from the bad conditions of working in a hemp room without ventilation. The other Haley sentenced to prison died right away.
Hope this helps. If you have anything about the Slaughters, please let me know as I can't find anything out about the murder of Edward other than a note in a family bible.