Ted Gunderson on the Great Conspiracy.

Theodore L. Gunderson (1928 – 2011) was a Federal Bureau of Investigation Special Agent In Charge and head of the Los Angeles FBI, an American author, and a conspiracy theorist. Some of his FBI case work included the Death of Marilyn Monroe and the Assassination of John F. Kennedy. He was the author of the best-selling book How to Locate Anyone Anywhere Without Leaving Home. In later life, he promoted a number of conspiracy theories, notably including satanic ritual abuse.

https://en.wikipedia.org/wiki/Ted_Gunderson