killdee

例句：

1. 1. The police are investigating the case of a recent murder.
   警方正在调查一起近期的谋杀案。
2. 2. He was convicted of murder and sentenced to life in prison.
   他因谋杀罪被定罪，并被判处终身监禁。
3. 3. The killer confessed to the crime and handed himself in.
   凶手承认了罪行，并自首了。