YOU SAID:

Ooh, what if the culprit behind it was

INTO JAPANESE

ああ、その背後にある犯人がいた場合

BACK INTO ENGLISH

Oh, if there was a criminal behind it

INTO JAPANESE

あ、後ろに犯人がいたら

BACK INTO ENGLISH

Oh, if there is a criminal behind

INTO JAPANESE

ああ、後ろに犯罪者がいる場合

BACK INTO ENGLISH

Oh, if there is a criminal behind