On this day in conspiracies

Ronald DeFeo Jr., 23, shoots and kills six members of his family, his parents and four siblings, in their beds at 112 Ocean Avenue, Amityville, New York.

In the evening, Silkwood, 28, drives from a union meeting toward Oklahoma City to meet New York Times reporter David Burnham and OCAW official Steve Wodka, reportedly carrying a folder of documents. Her Honda leaves Highway 74 and strikes a concrete culvert. She is killed. The folder is not recovered from the scene.

Richard Heene pleads guilty to attempting to influence a public servant, a felony under Colorado law, and Mayumi Heene pleads guilty to false reporting to authorities, a misdemeanor. Court filings describe a plan the couple set in motion roughly two weeks earlier, including coaching the children to back the story.

FIFA's ethics adjudicator Hans-Joachim Eckert releases a 42-page summary of investigator Michael Garcia's report into the 2018 and 2022 bids, saying it clears Russia and Qatar of decisive wrongdoing. Garcia publicly rejects the summary as containing erroneous representations of the facts and conclusions, and soon resigns.

The first widely cited report comes from Picatinny Arsenal in Morris County, where a contractor describes a light rising from the tree line toward the Army facility. The Picatinny Arsenal police later confirm roughly a dozen evening drone reports near the base between November 13 and early December.

Independent journalist Michael Shellenberger publishes a 12-page whistleblower report describing a program named Immaculate Constellation, on the same day the House Oversight national security subcommittee holds its hearing 'Unidentified Anomalous Phenomena: Exposing the Truth,' at which Shellenberger appears as a witness.