Mourners bid farewell to McKeithen By MARSHA SHULER mshuler@theadvocate.com Capitol news bureau COLUMBIA -- Mourners flocked to this village Tuesday to celebrate Walter Fox McKeithen as a slice of Louisiana history and a mix of forgivable vices and bedrock virtues. The longtime secretary of state died Saturday, five months after he was paralyzed by a fall and two decades after following his late father, Gov. John McKeithen, into a colorful political career. In control to the end, McKeithen ordered a breathing aid turned off after saying goodbyes and ensuring his family was secure, daughter Marjorie McKeithen Schlesinger told an overflow...