The Wilkinson County Board of Supervisors has rejected a request to rename the road where a Black World War II veteran was gunned down in what is believed to be the first killing by the White Knights of the Ku Klux Klan. In May, his family asked supervisors to change the road’s name from Poor House Road to Clifton Earl Walker Road. On Monday, the board’s administrator, David Wilkerson, told the family that supervisors had turned down the reques…