Decryption of the Donna Lass Code

On Saturday, September 5, 1970, Donna Lass left her apartment in South Lake Tahoe, without her vehicle, and walked to work. Lass worked as a nurse at the Sahara Hotel-Casino. On this particular day, she was on the night shift from 6.00 PM to 2.00 AM. Her last entry in the nurse's log book that night was at 01:50 AM, Sunday, September 6, 1970. The next day, on Monday, September 7, 1970, an unknown male called her landlord and employer, stating that Donna Lass would not be returning due to a family emergency. The call was determined to be a hoax, and there has been no trace of Lass ever since. A Zodiac encrypted message on a locally circulated Reward Poster was thought to perhaps give some clues to the location of her body. For the first time, the decrypted messages are published in this book.