YOU SAID:
I don't know what to say about the murder
INTO JAPANESE
殺人事件について言うことを知らない
BACK INTO ENGLISH
Don't know what to say about the murder
INTO JAPANESE
殺人事件について言うことを知っていません。
BACK INTO ENGLISH
Don't know what to say about the murder case.
INTO JAPANESE
殺人事件について言うべきことはわからない。
BACK INTO ENGLISH
I can't say about the murder case.
INTO JAPANESE
私は殺人事件について言うことはできません。
BACK INTO ENGLISH
I can't say about the murder case.
That didn't even make that much sense in English.