Fate was definitely not the deciding cause of the outcome of events in Julius Caesar. Fate did not control the actions of the characters, especially Caesar and Brutus. Instead, people took over.
The outcome of the play was determined by free will because people were responsible for their actions because of the choices they made. For example, Brutus could have decided not to kill Caesar, but Brutus used his own free will to choose to kill him anyway.
They thought they were following fate, but instead, it was their own free will. Fate did not control Julius Caesar's destiny-the actions of the people were responsible for Caesar's death.