Zimmerman told the police dispatcher that he had lost Martin.
Martin told his girlfriend he had lost Zimmerman.
How was Zimmerman supposed to initiate violence when he didn’t even know where Martin was?
Zimmerman never told the disapatcher either that he lost Martin or that he was going back to his truck.
He did tell the dispatcher that he thought Martin was making for the other entrance to the community. He could well have acted on that assumption by going through the cutthrough at the the other end of the row of buildings to intercept Martin's route. Which would place the incident right where Martin's body was found.
More logical than Zimmerman dragging Martin's body from the truck to behind the row of houses