YOU SAID:

You are at fault for this. You killed him.

INTO JAPANESE

あなたはこれに責任があります。彼を殺しましたよね。

BACK INTO ENGLISH

You are responsible for this. You killed him, didn't you?

INTO JAPANESE

あなたはこれに対して責任を負います。あなたは彼を殺しましたね。

BACK INTO ENGLISH

You are responsible for this. You killed him, didn't you?