Moral Christians don’t muder people?Well,sadly,sometimes in the heat of war and the emotional trauma of life and death issues,Christians do commit terrible acts.The Crusades would be one example or the Indian Wars in the US West.
Brown blew it at Ossawatomie,no doubt about it.
There is a qualitative difference between killing enemies in a war and bushwhacking people on your own decision. Atrocities committed in war are no more moral than those done otherwise, either. The states of Kansas and Missouri in the mid-19th c. seemed to be rife with people who were nominally "Christian", yet took glory in atrocities justified by "smiting the wicked" as self-defined.