YOU SAID:
A dog stepped into the room and killed my cousin twice removed.
INTO JAPANESE
犬が部屋に入って、私のいとこが二回削除殺しました。
BACK INTO ENGLISH
Dog entered the room, my cousin was killed Delete twice.
INTO JAPANESE
犬が部屋に入って、私のいとこが二回削除殺されました。
BACK INTO ENGLISH
Dog entered the room, my cousin was killed Delete twice.
That didn't even make that much sense in English.