Correct! Zimmerman followed Martin and when the dispatcher gave her advisory "we don't need you to do that". . he broke of his pursuit and was returning to his vehicle when he was confronted by Martin WHO HAD DOUBLED BACK TO DO SO!!! In other words, had Martin just gone into his father's condo and not doubled back to confront Zimmerman THIS WOULD NOT HAVE HAPPENED!
If Martin thought he was being followed and felt threatened, he should have dialed 911 on the cellphone.