Well not the specific location. right then (19:14:47)
But he had an idea where the kid was making for ("Down towards the, uh, other entrance to the neighborhood." - 19:13:23) and he was near "it’s a cut through" (19:14:33)
So speculation, but grounded in fact. Add to the fact the Martin intially ran, then phoned his girl to tell her he was going to walk fast get away from the weird dude, I'd say the encounter resulted from Zimmerman's interception is also a fair assumption.
Going back a couple of posts Zimmerman told police he was on his way back to his truck.
“Zimmerman told police Martin attacked him after he had given up chasing the teenager and was returning to his sport utility vehicle.”
http://www.naplesnews.com/news/2012/mar/23/fla-watch-captain-attorney-client-not-racist/
As to the last post you are speculating and making assumptions. You admit as much. Get back to me when you have proof. Evidence.
Read the last sentence:
Yes it will; however, the telecommunications call taker asked Zimmerman “are you following him”. Zimmerman replied, “yes”. The call taker stated “you don’t need to do that”. The call taker’s suggestion is not a lawful order that Mr. Zimmerman would be required to follow. Zimmerman’s statement was that he had lost sight of Trayvon and was returning to his truck to meet the police officer when he says he was attacked by Trayvon.