 That was strengthened in later years by the alleged claim of President Kim Gu's murderer, Ahn Doo-hee, that Kim Chang-Ryong was the mastermind of the assassination.Kim Gu's relatives even urged the South Korean government to exhume Kim Chang-Ryong's remains and to banish them from the National Military Cemetery of Daejeon.However, Kim Chang-Ryong's involvement in the assassination of Kim Gu is not certain; while Kim seems to have looked after Ahn after the assassination, the chief of the operation was Major Chang En-san, the commander of the artillery corps, who himself was arrested by Kim in July 1950 and executed in Daegu.