YOU SAID:

yesterday? You guys think it was murder?

INTO JAPANESE

昨日？殺人だったと思いますか？

BACK INTO ENGLISH

yesterday? Do you think it was a murder?

INTO JAPANESE

殺人だと？

BACK INTO ENGLISH

Is it a murder?

INTO JAPANESE

殺人ですか？

BACK INTO ENGLISH

Are you a murderer?

INTO JAPANESE

人殺しか？

BACK INTO ENGLISH

Are you a murderer?