The man alleged to have shot up a movie theater in Lafayette, La., has been identified as John Russel "Rusty" Houser, a former political candidate and activist here in Columbus. Columbus police confirm that federal authorities have contacted them about tracking Houser's background. Houser is the son of the late Rembert Houser, a longtime city tax commissioner. Rusty Houser had a history here of political activism, fighting taxes and at one point running for office. [....] According to the Associated Press, 2008 court records show Houser's family sought protective orders because he "exhibited extreme erratic behavior and has made ominous...