how does dantes seek revenge against caderousse?

Caderousse is originally Dantes' neighbor. He is incredibly jealous of Dantes. Caderousse's greed destroys him, for when Dantes returns as Abbe Busoni, Caderousse is given a diamond by the Abbe. Caderousse, however, kills the jeweler who buys the diamond. He also kills his wife. He himself is now incarcerated. A few years later Dantes visits his prison as Lord Wilmore and helps him escape. This is merely part of Dantes' punishment. Caderousse has not changed, he is still the same greedy man. Thus he dies in Monte Cristo's house murdered by his old friend Benedetto. The Count reveals his identity to Caderousse just as he is dying.