The following timeline of the December 14 mass killing of 20 children and 8 adults in Newtown Connecticut attempts to demonstrate how the event was presented to the public by corporate news media. The chronological assemblage of coverage is not comprehensive of all reports published on the incident but rather seeks to verify how the storyline was to a substantial degree constructed by federal and state law enforcement authorities and major media around the theory that 20-year-old Adam Lanza was the sole agent in the massacre.