Was MI6 code breaker Gareth Williams murdered because he knew about the Ana code and all the related secrets?
The code itself indicates that he was.
Does it also name his killer?
In order to fully understand the fact that it is very likely that it does the reader should go back to the Upwords in Pompeii post (July 25th) and read from there up to the present day.
Then you will see why the code says -
ROSS, NAPLES AND MI6 CODER HIT BY TATE... LINK.