As per Jim Marrs , WFAA Chanel 8 news cast that within a week of the assassination there was talk of the Stemmons Freeway sign being taken down because of bullet holes in it . There was speculation that Hoovers group took down the sign . Google up " The Stemmons Freeway Sign and the Lamppost " . On Wednesday November 27 , 1963 , Pete Barnes of the Dallas Police Crime Lab visited Dealey Plaza and took a series of photos with a speed graphic camera . He had made a cardboard sign of the Stemmons freeway sign to use as a comparison since the Original Stemmons Freeway sign had been taken down . He was trying to compare the Zapruder film frames to the Barnes frames and also with photos .
