11.

assassin
暗杀者

[双语解释]

A murderer. A person who sets out to kill someone, esp. a prominent person.
谋杀者。密谋杀害他人,特别是一位杰出人物的凶手。

例句:

Police are still looking for the assassin of the president candidate.
警方仍在追查暗杀总统候选人的凶手。