YOU SAID:

So the cause of death is still unknown?

INTO JAPANESE

死因はまだ分かっていないのでしょうか?

BACK INTO ENGLISH

Is the cause of death not yet known?

INTO JAPANESE

死因はまだ分かっていないのか?

BACK INTO ENGLISH

The cause of death is not yet known?

INTO JAPANESE

死因はまだ分かっていないのか?

BACK INTO ENGLISH

The cause of death is not yet known?