per‧pe‧tra‧tor /ˈpɜːpətreɪtə, ˈpɜːpɪtreɪtə $ ˈpɜːrpətreɪtər/
noun [countable] formal someone who does something morally wrong or illegal ⇒
culprit:
The perpetrators were never caught.perpetrator of The perpetrators of racially motivated violence must be punished. [TahlilGaran] Dictionary of Contemporary English ▲