The best video and best evidence is at the link above or below. Better than any 911 call recording because you can't be sure what you are hearing on those.
Video at upper left corner has the reporter standing on the spot where Trayvon was shot. Shows you from there just how close the windows that eye witness John saw and heard the event. They interview John on air and he tells what he saw and heard.
This is by far, is the best evidence in defense of Zimmerman. He saw and heard it up close. You can see for yourself just how close he was to the event. No other witness has this perspective.
Thanks for the link.
John does not say he saw the start of the fight. He saw it in progress, with Martin on top.
He locked his patio door and ran up his interior stairs, called 911, heard a shot, went to the window, and saw Martin lying on the grass.
So he did not see the actual shooting and the point at which the battle turned, or see who was doing the yelling and screaming at that time.
I’m GUESSING that Zimmerman took a number of punches without drawing his gun, knowing that the police were on the way, but at some point he thought he was going to be seriously injured or killed before the police got there (head bashed into the sidewalk?)
But the legal question is still - who started the fight?