muderer

例句：

1. 1.The murderer was caught after a long investigation.
   经过长时间的调查，凶手被抓获。
2. 2.The slain man's family is in shock at the news.
   被杀害的人的家人对这个消息感到震惊。
3. 3.The killer was apprehended by the police.
   警方逮捕了杀手。