Murder in the Museum

Murder in the Museum is a classic text adventure on a crime solving theme.

August 17, 1963: The curator of the Calhoon Museum, P. U. Plum , has been murdered. You take on the role of crime solver, as Inspector Claude LaMort of the French Surete, and is sent to the crime scene, a former castle, now a Museum holding one of Rodin's (fictional) sculptures, 'The Eunuch', also named the 9th wonder of the world.

Can you figure out who did it?