사람 죽인

who killed someone

→ 사람
phrase Uncommon #14,547
who killed someone 사람 means “person,” and 죽인 is a past-tense form of “kill” used to describe a noun. The phrase is often used with a noun that follows, as in 사람 죽인 적 (“experience of having killed someone”).
KO: 사람 죽인 적 있어요?
EN: Have you ever killed someone?

사람 죽인 거

Killing someone

— 브로커 (2022)

사람 죽인 거 처음 이잖아

It’s your first time killing someone, after all.

— 아키라 (1988)

사람 죽인 손으로 만든 거를!

Something made with the hands of murderers!

— 친절한 금자씨 (2005)