Doesn't make much sense that he'd be on the phone with the police for so long then commit murder.
Think it would depend where he got shot at, if it was on his own property then there is nothing to it. If he chased him down and shot him in the back, that would be suspicious.
Of course the media doesn't bother reporting where it actually took place, and they make Zimmerman out to be a racist, even though he is hispanic.
A Hispanic can't be racist?
Regarding where the shooting took place, several of the 911 callers describe that this happened behind their homes, and then this from the link posted above:
Martin had been staying at his father's girlfriend's house during the night of the NBA all-star game Feb. 26.
On his way back into the gated suburban Orlando community after stepping out, Martin, wearing a hood, was spotted by Zimmerman.
Zimmerman described Martin as suspicious because he was wearing a hooded sweatshirt and walking slowly in the rain, police later told residents at a town hall.
A dispatcher told him to wait for a police cruiser, and not leave his vehicle.
But about a minute later, Zimmerman left his car wearing a red sweatshirt and
pursued Martin on foot between two rows of townhouses, about 70 yards from where the teen was going.