From what I read in the first article, it would seem that no one was killed.
“Fearing the arrival of free-state reinforcements, Pate put up a white flag and the fighting stopped. The battle had lasted nearly three hours. Although several men were injured, no one was killed.”
Well, except the mules and horses:
“To ensure his enemy couldn’t escape, Brown ordered two of his men to shoot Pate’s horses and mules.”
http://cjonline.com/news/2015-04-13/john-browns-legacy-remains-controversial
I’m not surprised, but I had to confirm my suspicions. These guys knew how to shoot, but didn’t know how to fight. Really, this was little different than me and my non-military friends playing paintball all afternoon at White River Paintball. Except the bullets were real. But from a professional’s view, this was not a well conducted “battle.”