willingly injures, intimidates or interferes with another person, or attempts to do so, by force because of the other persons race, color, religion or national origin in regard to six types of federally protected activities, which include attending school, patronizing a public place... Not that we care about the laws are written any longer, but until he was attacked by Martin there was no force on Zimmerman's part.
It wasn't a public place.
As per the recorded 911 call, Zimmerman didn't know Martin's race until he was attacked.
The prosecutor's argument will be that the possibility that Martin was Black led Zimmerman to pursue him, and that Martin, fearing Zimmerman's intentions, attacked first. Having a gun, Zimmerman knew that if he provoked such a hostile reaction from Martin, he could bring any incident to a fatal conclusion for Martin.
Personally, I think that is a crock, but federal courts and judges tend to be friendly to the prosecution.