A former US Army National Guard soldier pleaded guilty to shooting and killing an Army soldier after he found the man in bed with his ex-girlfriend and mother of his child. Natravien R. Landry, 27, pleaded guilty June 11 to second-degree murder and use of a firearm during and in relation to a crime of violence in the killing of US Army Sgt. Andre S. Stewart Jr. at what was then Fort Eisenhower, now Fort Gordon, in Augusta, Georgia. Landry faces a minimum of 10 years and up to life in federal