Z didn’t have the chance to draw it after being blind-sided until TM made a move for it when exposed in the struggle.
According to other articles, gun jammed because the close range kept the slide from fully ejecting the first casing.
LEO or a gun-toting, trigger-happy, black-hating vigilante would have had the gun drawn and ready for action.
If George hates blacks, he’s self-hating:
George Zimmerman’s Black Ancestry is Revealed
http://www.freerepublic.com/focus/f-news/2876811/posts
George Zimmerman: the black, Hispanic, Peruvian, kind-hearted non-white, not-racist poster boy
http://www.freerepublic.com/focus/f-news/2876692/posts
George Zimmerman Has ‘Black Roots’
http://www.freerepublic.com/focus/f-bloggers/2876518/posts