 He pleaded guilty to one count of unpremeditated murder and one count of conspiracy to commit murder and received three years of confinement, reduction in rank to Private, forfeiture of all wages and a dishonorable discharge.Horne was confined at the Northwest Joint Regional Correctional Facility on Fort Lewis and was released in September 2005 after having his sentence reduced to one year by, then, Maj. Gen. Peter W. Chiarelli.In August 2004, U.S. forces opened fire on a group of men along a road in Al Sadr City in Baghdad.