I immediately discounted what your "expert" witness said.
As I've said, I've been knocked out 3 times in
fistfights. (When I got to 0-3 I quit.)
One was a shot directly on/over the eye.
I still remember the ring he was wearing.
The other 2 were to the jaw.
In NONE of those cases did I have a visible injury.
One of the jaw shots gave me a sore jaw for that day.
The only other time I was knocked out when I got blind-
sided with a 2x4. That blackened an eye, and I needed a
few stitches.
These type of fight injuries are variable depending on a
lot of things.
Zimmerman looked pretty messed up to me.
There was no mistaking he had been thrashed.
Treyvon had no injuries except a bullet hole.
Of course this all means absolutely nothing to you.
But I felt like saying it, so it's all good.