On 20th August , 1952 , he was made to stand to attention for seven hours .
When he complained was beaten by the Chinese guard commander with the butt of a submachine gun , which eventually went off and killed the guard commander .
On 20th August , 1952 , he was made to stand to attention for seven hours and when he complained was beaten by the Chinese guard commander with the butt of a submachine gun , which eventually went off and killed the guard commander .