I'd ask how long after the shot did the police arrive but I'm guessing shots fired impacts police response.I believe my point in making that statement was to show that Tanoomba's assumptions could just as easily be taken in the opposite direction.
However, what we know from the case is that Martin had Zimmerman on the ground for 30 to 40 seconds before Zimmerman shot him, correct?
So why should we presume that he would have stopped? The Prosecution actually tried to MAKE THAT CASE in their arguments, that's why the 90 degree positioning shit came up, they were trying to show that Martin might have been pulling away. Dr DiMiao blew that out of the water based on the angle of the gunshot to the chest and the clothing.
Anyway, it's very possible the police would have arrived in >5min from when Trayvon started beating Zimmerman's ass. Do you really think Trayvon would have continued punching GZ in the face for 5 minutes? Do you know how long that is to do something like that? I couldn't even embarrass myself on a heavy bag for more than 1 minute without being exhausted.