YOU SAID:
I killed a small baby today.
INTO JAPANESE
今日私は小さな赤ちゃんを殺しました。
BACK INTO ENGLISH
Today I killed a small baby.
INTO JAPANESE
今日、私は小さな赤ちゃんを殺しました。
BACK INTO ENGLISH
Today I killed a small baby.
That didn't even make that much sense in English.