Napoleon (the bad pig)'s Character Growth

Napoleon, the bad pig, started off ok. He and Snowball took over the leader position after Old Major died. Snowball did most of the talking and Napoleon did most of the brooding. But soon, Napoleon got tired of sitting on the sidelines. He killed Snowball and blamed everything that went wrong on him as well. Then Napoleon decides that he is better than everyone else. The other animals dont really see what's happening until Napoleon starts killing other animals. Then they become worried. Napoleon changed so much because he became to interested in his own welfare, and greed, and the power that he had corrupted him