How likely are you to get into a fist fight with a man who you know has a gun? Versus trying to run away? A 17 year old athlete WILL be able to outrun a chubby 240 pound guy.
It's more likely that Martin did not know Zimmerman had a gun before the second that Zimmerman shot him.
Plus, even back when I was 17, I would not be likely to be walking 4 miles round trip, in the rain, to get skittles. The ONLY thing that would have had me walking 4 miles in the rain would have been if I was escorting a pretty girl. Then again, if my primary purpose for walking around was to case the neighborhood, then stopping off for a snack in the process would be likely.
How far away from Martin was Zimmerman when he shot?
And, more to the point, why surmise, without any evidence, that Martin, who had been trying to avoid Zimmerman suddenly turned aggressive and attacked Zimmerman, who, buy his own taped account was the aggressor?
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Oh, I get you now....you're one of those guys who, in spite of the lack of any evidence of any kind, want to depict the dead teen as a criminal...