Who is Dimitrios Makropoulos/Talat/Taladis/Rougemont, a.k.a C.K. from A Coffin for Dimitrios and what is their importance?

Dimitrios is the subject of Latimer's investigation. He was found abandoned as a child and adopted by Greek parents. Latimer discovers little about Dimitrios's childhood or the circumstances that cause him to turn to crime. The first anyone knows of Dimitrios is when he appears in 1922 in Smyrna, during the time of the Turkish genocide against Armenians. Dimitrios kills a Jewish money lender, who the police will likely care little about, and he steals the man's money, framing a black man who the police will care equally little about. He takes advantage of the prejudices of the world to hide his own crimes, as he slips away into Greece himself. As a refugee, Dimitrios also takes advantage of the world's confusion to obscure his identity.