SAN ANGELO -- Authorities have recovered the body of a missing Dyess Air Force Base airman from a stock tank on a West Texas ranch, his stepsister said. Staff Sgt. Michael Leslie Severance's body was found in 10 to 20 feet of water in a tank 15 miles northeast of San Angelo, Nicole Leighton said Monday. His body had been weighted with cinderblocks, and his death was ruled a homicide. Severance, 24, had been missing since Jan. 15. He lived in San Angelo but was assigned to Dyess in Abilene, about 90 miles to the northeast. Leighton said Air Force...