On January 4, 1977, 37-year-old Harry The Horse Flamburis and his girlfriend, Dannette Barrett, were found bound and shot in the head in their Daly City, California, home. Flamburis was president of the San Francisco chapter of the Hells Angels. The killings were execution-style, and a safe in the house had been cleared of about $22,000 worth of cocaine and an amount of LSD, a detail that prompted investigators to consider organized-crime motives and possible links to internal Hells Angels tensions or rival groups.

The scene and stolen drugs pointed to a premeditated attack; a few months later the house was burned in an apparent arson that further complicated the inquiry. Flamburis was buried at Cypress Lawn Memorial Park on January 15, 1977, and about 200 Hells Angels and other motorcycle club members attended; his Harley-Davidson was interred with him in April 1977. No one has been formally charged and the case remains unsolved.

Did anyone in the Bay Area at the time have information about rivalries or suspicious activity around that chapter?