What incident in act iii of Julius Caesar affected the audience most?

In act iii of Julius Caesar, the most impactful incident that affects the audience is the assassination of Caesar. This scene is incredibly powerful and emotional as it portrays the betrayal and violence that ensues after Caesar's death. The moment when Brutus and the other conspirators stab Caesar multiple times is particularly shocking and heart-wrenching. The audience feels a sense of horror and disbelief as they witness the demise of a beloved and influential leader. This event sets in motion a chain of events that leads to further conflict and tragedy, leaving the audience deeply moved and invested in the story's outcome.