Police have identified a key witness linking murder suspect Supachai Paso, a former Army captain, to his alleged victim Juthaporn Oun-on, a Si Sa Ket-based local administration organisation official whose body was found early last week, a police source said on Tuesday.

SI SA KET police chief Pol Maj-General Suradech Dentham has instructed police to file two additional charges of premeditated murder and concealing a body against former Army captain Supachai Paso, 30, today in relation to the disappearance of Juthaporn Oun-on, 37, a Si Sa Ket-based local administration organisation official.