Gat-Errant
From SuspireWiki
(n., slang)
A gunman (or sometimes any thug), whether mortal or Kindred, who serves a lord without vassalage to motivate him; a violent minion who resides outside the feudal structure. In use, this term sometimes implies a basis for service outside of money or material compensation (such as fear or idolatry), but not always. “Romeo’s another one of Culver’s gat-errants keeping wannabe witch-hunters off the royal lawn.”