Zodiac branded killings of 1968-69 SF Bay Area

Military style bayonet attack and three shootings: seven victims, five killed.
December 21, 1968, high school students Betty Lou Jensen, 16 and David Faraday, 17 shot by ten rounds of 22-caliber semi-automatic pistol(s). Appeared to be two shooters with two semi-automatic pistols.

July 4, 1969, killing of twenty-two-year-old Darlene Ferrin was a wife, mother and a popular waitress at a Vallejo restaurant. On the night of July 4, she picked up friend Michael Mageau, age 19, and stopped her Corvair in the parking lot of Blue Rock Springs Park. 9mm pistols.

July 31, 1969, three letters mailed to three newspapers. No reference to "Zodiac"
August 4, 1969, a fourth letter is sent to The Hearst Examiner and is signed Zodiac.

September 27, 1969, on a Saturday in late September, college students Bryan Hartnell, age 20, and Cecelia Shepard, age 22, were relaxing along the shore of Lake Berryessa, some 30 miles north of Napa, California. Bayonet attack.

October 11, 1969, Paul Stine, of CIA Haight Asbury Project Fell Street, a 29-year-old student and husband, worked as a cab driver in San Francisco. That night, Stine picked up a fare headed for a destination in the upscale Presidio Heights neighborhood. At the intersection of Washington and Cherry Streets, the passenger shot Stine in the head and removed a piece of the victim’s shirt.

Yellow Cab driver Paul Stine, age 29, appears to be a CIA operative of Haight Ashbury Project.

Killed by a 9mm semi-automatic pistol. He picked his fare at the corner of the Olympic/Bohemian Clubs. Post & Taylor Streets near the Saint Francis Hotel.

CIA Melvin Belli gets involved on KGO television hoax call in from Zodiac Killer.
https://www.the-sun.com/news/3804918/who-are-zodiac-killer-victims/

https://www.history.com/news/the-zodiac-killer-a-timeline