YOU SAID:

i may or may not have killed someone

INTO JAPANESE

私は誰かを殺したかどうかわからない

BACK INTO ENGLISH

I don't know if i killed someone

INTO JAPANESE

私が誰かを殺したかどうかわかりません

BACK INTO ENGLISH

I don't know if I killed anyone

INTO JAPANESE

私が誰かを殺したかどうかわかりません

BACK INTO ENGLISH

I don't know if I killed anyone