[[David Mayer]] was an attorney from Marin County, [[California]]. He represented [[Calvin Robinson]], who was dubbed the "drug tug" captain by local media. Mayer obtained the assistance of attorney [[David Mayer]] to represent him at his 1989 trial. However, on February 6, 1989, the night before Mayer was to appear in court to defend Robinson, he died from a gun-shot wound. His death was ruled a suicide, and a suicide tape was found.[^1] Mayer's attorney/client files reportedly contained documentary evidence from his client, [[Ben Kalka]], regarding Kalka's business ties with [[Michael Riconosciuto]] at [[R & R Research]], at the laboratory facilities at Hercules, [[California]], and [[Dr. John Philip Nichols]].[^1] --- ### Footnotes [^1]: Seymour, Cheri. *The Last Circle: Danny Casolaro’s Investigation into the Octopus and the PROMIS Software Scandal*. First Edition. TrineDay, 2010.