YOU SAID:

but what ever killed me

INTO JAPANESE

しかし、何が私を殺した

BACK INTO ENGLISH

But what killed me

INTO JAPANESE

しかし、何が私を殺したのか

BACK INTO ENGLISH

But what killed me?

INTO JAPANESE

しかし、何が私を殺したのですか?

BACK INTO ENGLISH

But what killed me?