Zimmerman walked to point E where he completed his call with the dispatcher.
He was walking back toward his car at point C when Martin assaulted him. The prosecution has conceded they do not have evidence that this was not what happened.
Martin was not walking home at the time of the altercation, but had double-backed to confront Zimmerman.
If Martin was actually walking directly home (in fact, his father's girlfriend's home), he would have been there before Zimmerman's call even ended.
__________________________________
They have no evidence that something didn't happen --- therefore it's true?
Meet the new boss dated goats in high school --- please provide evidence that this didn't happen.
Oh, btw...by your own map, z could not have been walking directly from point E to point C if he got jumped (as you say) at point F.