John F. Kennedy assassination conspiracy theories fired at President Kennedy came from the sixth-floor window at the southeast corner of the Texas School Book Depository. The Commission based its conclusion on the "cumulative evidence of eyewitnesses, firearms and ballistic experts and medical authorities", including onsite testing, as well as analysis of films and photographs conducted by the FBI and the US Secret Service. In 1979, the House Select Committee on Assassinations agreed to publish a report from Warren Commission critic Robert Groden, in which he named "nearly [two] dozen suspected firing points in Dealey Plaza". These sites included multiple locations in or on the roof of
Timeline of the John F. Kennedy assassination announcement of President Kennedy's death, all three commercial networks suspended their regular programming and commercials for the first time in the short history of television and ran coverage on a non-stop basis for four days. The assassination of President Kennedy was the longest uninterrupted news event in the history of American television until just before 9:00 a.m. EDT, September 11, 2001, when the networks were on the air for 72 hours straight covering the 9/11 terrorist attacks. Once back at Air Force One, and only after Mrs. Kennedy and President Kennedy's body had also returned to the plane, Lyndon Johnson