The reason Martin died is he attacked Zimmerman. That is the truth. He had the bad luck to pin Zimmerman to the ground. Had they both been standing, throwing punches, he would still be alive today. By pinning Zimmerman on the edge of that sidewalk and pounding on him he forced Zimmerman to use his gun.
Zimmerman wasn't a macho guy that night and had no intention of confronting Martin, face to face. How do I know? Because if he had no background of confronting people he called 911 on. As people have made fun of him for calling 911 so often, never before, in all those calls had he confronted those he called on and he never approached the others in any way, not to question them or to hold them for the police. On the phone with 911 he said, and it is recorded, that he lost Martin and couldn't find him...encounter over, everyone safe and sound...until Martin came back. Leaving the car didn't cause the problem. A drug using and violent prone teenager caused the problem.
Another thing, Martin approached Zimmerman in his car, circled it and then walked off. If Zimmerman had intended to confront Martin, he would have done it there and then, and not let Martin get so far ahead of him that he lost sight of him. The verbal confrontation would have been started then. The problem started when Martin, a drug user and violent teen, decided to start a confrontation with Zimmerman...that is what led to his death.
If GZ had taken the much more time-consuming approach of trying to be a Big Brother to local kids at risk,
You do know he was mentoring two kids, he checked on his neighbors, in particular the woman who had to teenagers rob her house while she was barricaded in her bedroom, and apparently was helpful to others as well. He called out the police for beating a black homeless man, and did other things to help people. So helpful the Neighborhood watch liason offered him a spot on the civillian patrol, where they would have given him his own car and a uniform...which he turned down.
You can find out all of this stuff by watching the coverage of all the prosecution witnesses...who pretty much said he was a helpful guy in the community. Then you can watch the defense for the people the prosecution didn't call to see everyone else say he was a helpful guy...