ZODIAC – CODI – CODY – BUFFALO BILL
SFPD-O -12
SPFD -O
The hint in the cipher indicates that the letter ‘-O’ should be replaced by ‘-12’, corresponding to the 12th letter of the alphabet, ‘L’.
SPFD-L
SPEC-K
To derive a word by replacing each of the letters F, D, and L with their previous alphabet letters:
- F -> E
- D -> C
- L -> K
Given these replacements, let’s apply them to the original letters F D L:
- F becomes E
- D becomes C
- L becomes K
Therefore, F D L is transformed to E C K.
The Zodiac Killer’s Z-408 cipher, sent on July 31, 1969, hinted at the invasion of Richard Speck on the night of July 13, 1966, when he murdered nursing students in Chicago. Clive & Lally Investigations decoded Z-408, revealing “FERN’S PIG” as a significant clue. Another cipher, Z-32, hints at Speck’s name by including the clue SFPD-O (-12). Z-32 also references the “Vatican Chapel,” which, when combined with “FERN’S PIG” from Z-408, points to “Della Pigna” in the Vatican.
