In my view, this leads to a few key considerations. The fact that the omega sequence is arranged in an anomalous way—with the symbol on the left rather than on the right like the other sequences—suggests that this is not accidental, but intentional. It could be an indication left by Zodiac to point out exactly where to operate, namely where to identify a symmetrical letter to assign a negative value in order to obtain the letter “S.”

In this way, we end up with only one “E,” but this does not prevent us from forming the word “HERCULES.” As suggested in the analysis, we could assume that Zodiac intended the letter “E” to be used multiple times, or that the omega sequence itself, given how it is constructed, carries a dual value, representing both “E” and “S.”

In any case, at this point we are able to identify the letter “S” and, consequently, the city of Hercules.