A person's right to self defense begins at the moment the person reasonably believes that he or she is facing deadly force and reasonably
believes it necessary to respond in kind. Thus, George Zimmerman could not have argued self defense had he shot Martin at any point before Martin posed a deadly threat to him. Only at the moment when Zimmerman subjectively and reasonably believed that Martin was going to kill or seriously injure him, was he justified in using deadly force. Whether Zimmerman did in fact believe that Martin threatened him in this way was a question of fact to be judged at trial. Zimmerman's plead suggests he persuaded the jury that he met these requirements.