An active duty airman has been charged with the murder of a 21-year-old woman from Box Elder, South Dakota, who had been missing since August. The body of Sahela Sangrait was discovered by a hiker near Hill City. Following the discovery, law enforcement made an arrest in the ongoing investigation into the human remains case. The airman, stationed at Ellsworth Air Force Base, is now facing charges related to this high-profile homicide case.