Having been raised in the Bluegrass, the 1861-1865 war was dirty for both sides.
Lincoln recognized early on, that one of the keys to defeating the Confederacy, was to insure that Kentucky remained in the Union.
“I think to lose Kentucky is nearly the same as to lose the whole game. Kentucky gone, we can not hold Missouri, nor, as I think, Maryland."
He ordered Louisville, Covington, Owensboro, and Paducah occupied to insure that the Ohio river didn't become a natural barrier to the Union supply chain. Later, the battle of Perryville was probably the bloodiest one-time engagement in the Commonwealth's history.
Burbridge certainly was evil (maybe even insane), and at least one of my professors in college likened him to SS commander Reinhard Heydrich.
There was enough blood and crime to go around on each side. What's left out of the article, was the killing that was done by Morgan. Morgan's raiders took very few Union prisoners, and he got as far as Jeffersontown, before being turned back. There's a historical marker at Taylorsville Road and Watterson Trail noting the fighting there, and on out toward Fisherville.
Quantrill and Mosby also gained infamy for their raids in the Commonwealth.
It was not a time of brotherhood, and nobody chanted "Kumbaya".