It appears that Iago’s lies and stories were the cause of the tragic events that occurred. Iago is jealous of Othello due to him having a better position than himself and him assuming he has had an affair with his wife. Iago decides to ruin the most important feature in his life, his relationship with Desdemona. Othello sees Iago as a friend and someone he could trust, which ends up backfiring, and Iago took that to his advantage. Iago realizes how jealous Othello gets and uses Cassio, Othello’s lieutenant, as his bait. Iago describes his craft as “double knavery”. Iago didn’t plan on Othello killing Desdemona or himself. In the end Othello’s rage and guilt was the cause of tragic events, however Iago’s jealousy lead to end