Louis Ray Perez was the last known person to see Brittany Kilgore alive. Now he has been charged with her murder. The Staff Sergeant was already in jail on an assault weapon charge and now is the second person arrested and charged with murder. Previously, Jessica Lynn Lopez was arrested for the murder of Brittany. Jessica has since tried to kill herself and has plead not guilty. Perez and Lopez lived in the same house and had some kind of S&M relationship going on and Perez had a date with Brittany the night she disappeared.