YOU SAID:
I am killing the children
INTO JAPANESE
私は子供たちを殺しています
BACK INTO ENGLISH
I'm killing kids
INTO JAPANESE
私は子供を殺しています
BACK INTO ENGLISH
I'm killing a child
INTO JAPANESE
私は子供を殺しています
BACK INTO ENGLISH
I'm killing a child
That didn't even make that much sense in English.