multiple murders 多起谋杀
serial murders 连环谋杀
murder investigation 谋杀调查
A: The news reported several murders in the city last night.
A：新闻报道了昨晚城里发生的几起谋杀案。
B: That is terrifying; the police must increase patrols.
B：那太可怕了；警察必须加强巡逻。
1) 谋杀行为（名词复数）
2) 谋杀罪（名词复数）
3) 实施谋杀（动词第三人称单数）
1. 谋杀；杀人罪
noun
1. The unlawful killing of one or more people.
Synonym: homicides, killings