YOU SAID:

I slaughtered a family of five and most of them were children

INTO JAPANESE

私は5人の家族を殺しました、そして、彼らのほとんどは子供でした

BACK INTO ENGLISH

I killed five families, and most of them were children

INTO JAPANESE

私は5つの家族を殺しました、そして、大部分は子供でした

BACK INTO ENGLISH

I killed five families, and the majority were kids

INTO JAPANESE

私は5人の家族を殺しました、そして大半は子供でした

BACK INTO ENGLISH

I killed five families, and the majority were children

INTO JAPANESE

私は5人の家族を殺しました、そして大半は子供でした

BACK INTO ENGLISH

I killed five families, and the majority were children