YOU SAID:

I killed a human but I stole their hat first

INTO JAPANESE

私は人間を殺しましたが、最初に彼らの帽子を盗みました

BACK INTO ENGLISH

I killed humans but stole their hats first

INTO JAPANESE

私は人間を殺しましたが、最初に彼らの帽子を盗みました

BACK INTO ENGLISH

I killed humans but stole their hats first