The FBI files state :
Qc64 Photocopy of envelope postmarked "U.S. Postal Service, CA 913 PM 3 FEB 1974", bearing the hand printed address "Editor San Francisco Chronicle San Francisco, California".
Qc65 Accompanying photocopy of sheet of paper bearing the hand printed message beginning "Dear Mr. Editor, Did you know that the....."
Just one week after the February 3rd 1974 S.L.A. letter (which began with Dear and ended with a friend), on February 10th 1974, a Symbionese Liberation Army letter was mailed to the Hearst Family or FBI, beginning and ending in exactly the same fashion. So, we are left with two options: [1] Zodiac suddenly appeared after 3 years and just happened to write a letter about the Symbionese Liberation Army, one day before the kidnapping of Patricia Hearst - which would be an amazing coincidence, or [2] The Symbionese Liberation Army wrote the S.L.A letter, one day before the kidnapping.
The February 10th 1974 letter from the Symbionese Liberation Army, should be proof positive, they were also responsible for the February 3rd 1974 letter, mailed just before the kidnapping of Patricia Hearst.
The 'Hearst Family' letter may have been authored by Sara Jane Olson (born Kathleen Ann Soliah), who could also be responsible for the S.L.A letter mailed from Los Angeles (913) just a week earlier, on February 3rd 1974. She was closely affiliated to the Symbionese Liberation Army. The "Old Norse" element of the letter drawn from her Norwegian-American ancestry.
