Him buying candy is totally irrelevant. Totally. Okay, since he didn't want to run home, why didn't he call 911 or his pops? So you believe George Zimmerman chased the young athletic Martin down on foot? Unlikely, but okay. Zimmerman chases him down they would immediately start fighting ain't gonna be no talking is you chasing a nikka down. Then they get to fighting and then what Zimmerman pulls out the hammer and drops Trayvon? Not exactly unlikely, and probably the most plausible but that was never the argument.
Not chase down, but he definitely ran to try to catch up with him, remember, according to zimmerman, Trayvon Martin started to "run" He didn't call his pops because his father wasn't even at home at the time. But what you are not acknowledging, and what the prosecution failed to show was that Trayvon Martin had every right to stand his ground. He didn't have to run home, or call 911 or call his father because he had a right to defend himself because he was the one being pursued. But there are people wanting a scared and nervous 17 year old kid to make a rational adult judgement call when he is being followed by a stranger.
And we will never know the truth about who started the altercation, we just have one side of the story. As the saying goes, "the only way to keep a secret between 3 people is if 2 of them are dead. I wished that Trayvon Martin would've stayed on the phone, but I also wished that zimmerman would've acted like a mature adult and asked Trayvon what he was doing in the neighborhood, because he was neighborhood watch and he was concerned about break ins. And he had ample opportunities to do so. zimmerman was the adult and could've proven that by talking to Trayvon Martin before he ever got out of his truck. He chose to let a gun speak for him and that's unfortunate.