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
John F. Kennedy assassination conspiracy theories indicated there was complicity on the part of Johnson include Jim Marrs, Ralph D. Thomas, J. Gary Shaw, Larry Harris, Walt Brown, Noel Twyman, Barr McClellan, Craig Zirbel, Phillip F. Nelson, and Madeleine Brown. The fact that JFK was seriously considering dropping Johnson from the ticket in favor of NC Governor Terry Sanford should Kennedy run in 1964 has been cited as a possible motive for Johnson's complicity in the assassination. In 1968, Kennedy's personal secretary Evelyn Lincoln wrote in her book, ""Kennedy and Johnson"" that President Kennedy had told her that Lyndon B. Johnson would be replaced as Vice