All Zimmerman had to say was "neighborhood watch". All would have ended. He had the time.<quoted text>
It was raining. Shouldn't he have hurried home instead of hanging around and drawing attention to himself with seemingly no sense of purpose being in a strange neighborhood?
Martin didn't have time to say anything. He apparently reached for his phone to dial 911 again after being confronted and was punched to the ground and beaten.
As the Neighborhood Captain he had to have known this.