当局对该地区一系列残忍的谋杀感到担忧。

The authorities are concerned about a series of brutal ___killings in the area.

纪录片展示了令人震惊的暴力谋杀画面。

The documentary showed graphic ___killings that shocked the audience.

最近的一起谋杀案引发了公众对安全的担忧。

A recent ___killing has raised questions about public safety.