Assassination: the act of secretly killing an important or public figure, often for political reasons (noun or suru-verb).
歴史上、幾人かの首長が暗殺によって命を落とした。
Historically, several leaders have been killed by assassination.
暗殺未遂事件が国内で発生したと報じられた。
It was reported that an attempted assassination occurred in the country.
作家の小説は政治的暗殺をテーマにしている。
The writer's novel centers on political assassination.