By JUAN A. LOZANO and MICHAEL GRACZYK, Associated Press HUNTSVILLE, Texas (AP) — A Texas inmate with a history of violence against women was executed Wednesday evening for fatally shooting his wife, who had feared she would never get out of her marriage alive. John Gardner, 64, received a lethal injection at the state penitentiary in Huntsville for the January 2005 slaying of Tammy Gardner. Prosecutors