YOU SAID:
i will kill everyone in this classroom including no one
INTO JAPANESE
私は誰も含めてこの教室の全員を殺します
BACK INTO ENGLISH
I kill everyone in this classroom, including everyone
INTO JAPANESE
私はこの教室の全員を含む全員を殺します
BACK INTO ENGLISH
I kill everyone, including everyone in this classroom
INTO JAPANESE
私はこの教室の全員を含むすべての人を殺します
BACK INTO ENGLISH
I kill everyone, including everyone in this classroom
You should move to Japan!