YOU SAID:

Lets do some murdering

INTO JAPANESE

殺人をしましょう

BACK INTO ENGLISH

Let's murder

INTO JAPANESE

殺そう

BACK INTO ENGLISH

I'm gonna kill it.

INTO JAPANESE

殺してやる

BACK INTO ENGLISH

'Cause I'm gonna kill him.

INTO JAPANESE

殺してやる

BACK INTO ENGLISH

'Cause I'm gonna kill him.