My opinion here goes both ways. In some way he is not guilty because he was apparently attacked by teenager trayvon martin. But remeber this teen was taller that him and much more faster so of course self defense was needed. But then he is guilty in some way because the police told him on the phone not to take any further action because they were coming and the police would handle the situation. Well no.... george did not do that instead he shot the teen. Im half half on this whole subject.