There’s an old Texas saying;
“Some people just need kill’n.”
After flunking out of college when I was young in 1973, I had a job as a helper on a construction crew in Louisville, Kentucky. The owner of the business would not hire convicted thieves, but murderers who had served their time were not a problem. On a lunch break, one of the killers asked another why he killed that man at the bar. The guy said, "the man needed killin'." Talk about a reality check. Of course in retrospect, I realize they were putting on a show for us innocents.