Why murder?

The New King James Version includes “murders” among the works of the flesh in Galatians 5:19-21. Most other versions leave it out; evidently the older documents tend not to include it. Regardless, I doubt anyone would have difficulty with the idea of murder being included among the acts brought on by a wanton, godless lifestyle.
We likely would be more comfortable if it were left out. A world characterized by “strife, jealousy, outbursts of anger, disputes, dissensions, factions, envying,” — we could manage that. We all can relate to such things; most of us have at least dipped our toe into more than a few of them. And without such things, what would we find to watch on television?