YOU SAID:

I have found the one wronged me, he shall pay.

INTO JAPANESE

私に不当な扱いをした人を見つけました、彼は代償を払うでしょう。

BACK INTO ENGLISH

I found someone who wronged me, he will pay the price.

INTO JAPANESE

私を不当に扱った人を見つけた、彼は代償を払うだろう。

BACK INTO ENGLISH

I found someone who wronged me, he will pay the price.