YOU SAID:

right through his neck

INTO JAPANESE

首を右から

BACK INTO ENGLISH

Head from the right.

INTO JAPANESE

右から頭します。

BACK INTO ENGLISH

Right to head the.

INTO JAPANESE

頭を右。

BACK INTO ENGLISH

It's right to the head.

INTO JAPANESE

頭を右です。

BACK INTO ENGLISH

The head is right.

INTO JAPANESE

頭を右です。

BACK INTO ENGLISH

The head is right.