How could Zimmerman retreat with a 6’3” Trayvon according to witnesses beating him up on top of him with the cement to his back? Self defense all the way IMO.
Especially since we know Trayvon went running away and came back to attack himself.
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Yep, we do know that Martin ran but there has been absolutely no testimony or evidense that he came back and attacked.
If you have proof of your statement of what you "know", please provide it.