1.2 We have Zimmernman's recorded statement to the police dispatcher & Martin's statement to his girlfriend (as testified to by her) that Martin "lost" Zimmerman.

This is an inturruption in the "stalking" (a term I disagree with but will let stand) and the physical altercation.

As soon as Marting had eluded Zuimmerman, he can no longer use the "stalking" as a justification for his assault thus his attack on Zimmerman was unprovoked and criminal making the shooting of Martin, while probably tragic, completely justifiable..

Additionally, though it is an incredibly tough (thought not impossible) position to take and defend in court, person A can illegally assault person B, get physically pummled by B, and then shoot them in self defense. You can't make a "Stand your Ground" argument (and be shielded from civil liability) but you can make a justifiable homicide criminal defense (think joe schmo attacks someone who holds 9th degree black belt in 15 different arts and the black belt won't stop hitting him after joe is defeseless with debilitating injuries).