Bam!
The document shown is an analysis of materials related to the "Zodiac" case, a series of murders in the late 1960s and early 1970s in the Sacramento-San Francisco area. The analysis includes the following findings: [1]
• The materials (designated Q1 through Q6) resemble the letters and cryptograms associated with the Zodiac case, which remains unsolved.
• No indented writing was observed on the materials, and Q1 has no watermarks.
• Q3 paper is branded "Conqueror," from Sloan Paper Co. in Doraville, Georgia.
• Q2 and Q4-Q6 papers bear watermarks from Sheaffer Eaton in Pittsfield, Massachusetts.
• Specimens Q2 and Q6 use a substitution cryptosystem, where each letter is replaced by one or more symbols. Common letters have multiple ciphertext equivalents.
• The substitution system is detailed as follows:
| Plaintext | Ciphertext |
| --- | --- |
| A | 7 |
| B | V |
| C | Z |
| D | J |
| E | K |
| F | M |
| G | A |
| H | S |
| I | P |
| J | 4 |
| K | 9, Q |
| L | E, O, T |
| M | W, N |
| N | I |
| O | L |
| P | F |
| Q | H |
| R | Y |
| S | A |
| T | ⋒ |
| U | T |
| V | X |
| W | ⋀ |
| X | ⋀ |
| Y | ⅄ |
| Z | ⅄ |
AI responses may include mistakes.
[1] https://files.eric.ed.gov/fulltext/ED144377.pdf