The thing is, before this story blew up and the media ran with it, way back when Zimmerman first made his statement to the police, it lined up with what seemed to happen. According to Zimmerman's story he stopped the pursuit and was heading back to the car when Martin came back to him. According to the recorded call, the dispatcher said, "we don't need to do that," and Zimmerman said, "Okay." He didn't argue, he didn't say anything to the contrary, he just said, "Okay." That, at the very least, opens up the possibility that Zimmerman did comply with the dispatcher and Martin did, in fact, come back to confront Zimmerman as to why he was following him. Remember, in the call, you can hear the wind for a decent amount of time, indicating that Zimmerman was out of the car and walking for a good distance, yet the police tape seems to be really close to the road which also supports the possibility that Zimmerman was confronted on his way back to the truck, where the fight ensued. Then the only actual eye witness to the fight sees Martin on top of Zimmerman and Zimmerman is the one screaming for help.
All the motivated witnesses that come out days and weeks later to offer up opinions, with zero evidence, as to what they think actually happened aside; let's look at Zimmerman's story. Having the gun on him, regardless of how other countries view guns, is not illegal in this country. He has a CCP. I don't know how gun owners are, about their guns; if they regularly keep them on their person or not. Regardless, Zimmerman, legally having his gun on his person, reports a susicious looking individual. The person has something in his hands and begins to approach the car, then takes off running. Zimmerman gets out and follows, then it is suggested to him not to pursuit. Zimmerman ends the pursuit but Martin comes back and confronts him, at some point punching him in the nose, taking him to the ground and repeatedly bashing his head on the ground. Then his attacker goes for his gun, he now thinks his attacker is going to kill him so he fights for the gun and kills his attacker. If (hypothetically) that were the case, is he still reckless?