Brutus quickly becomes the leader and key decision maker in the conspiracy, due to the fact the other conspirators are willing to do anything in their power to keep him on their side. After telling his wife, Portia, that he was sick, but then going outside in the cold, Brutus knows that his wife is onto him. But, Brutus covers for himself with his deep love for Caesar. The purpose of deceiving and manipulating Brutus, was so the conspirators had a person well-known as Caesar's friend on their side. Getting Brutus to join the conspiracy is what leads Brutus into the position of the tragic hero in the story. Brutus does many other significant things to position himself as the tragic hero, but joining the conspiracy is by far the most impacting