 Over the ensuing decade, Knox used his own columns in magazines popular with NRA members like "Shotgun News" and "Guns & Ammo" to get himself and up to 10 allies elected to the NRA board in 1991.In 1997, a narrowly-divided NRA Board voted Knox out of the succession line for president of the NRA, replacing him with Charlton Heston, who was subsequently elected president of the organization.Knox died in 2005, aged 69, after a year-long struggle with colon cancer.