I agree that the injuries don't have to be life threatening for someone to fear for their life. However, if the injuries weren't life threatening, it seems like GZ would have had a greater opportunity to fight back. From all accounts, GZ did nothing to defend himself except shimmy to the grass. He never threw a punch, tried to overpower TM, tried to flip him over, or grabbed him in his "man parts."Yet, when there was an apparent struggle for the gun, of which I think the person on top would have more power and control with being on top, GZ was easily able to overpower TM and shoot him.
Doesn't matter what it seems like, it only matters what Zimmerman feared. Martin straddled him. If someone straddles you, your arms can be caught up and you have to struggle to try to get them free.
Zimmerman did not say he was easily able to get away.
Yet, when there was an apparent struggle for the gun, of which I think the person on top would have more power and control with being on top, GZ was easily able to overpower TM and shoot him.
and yes, I read what you wrote. You didn't mention the police but ok. I don't think they has an on patrol person. So he was a little over zealous ...