/pəˈpɛtˌreɪtər/ – Noun
Definition: kẻ vi phạm luật hình sự, kẻ tội phạm.
A more thorough explanation: A perpetrator is a person who commits a crime or wrongdoing, typically referring to someone who is responsible for carrying out an illegal or harmful act.
Example: The police are still searching for the perpetrator of the crime.