Just for the sake of argument.
It was probably manslaughter, in that case. Even if Zimmerman said, "I'm going to kill you" and displayed the weapon, although, if that was proven, it might be tough to secure a conviction.
However, again, it didn't happen that way. No amount of alternative facts or assumptions is going to change the case we have. Two people, suspicious of each other - and I'll say it, probably because of preconceived notions about race - come together and 1 dies. I believe Zimmerman's general contention (not every little detail, but his general theory of the encounter - because it is supported by the evidence) that he noticed Martin, followed him and reported his actions. Police indicated they did not need him to do that. Martin noticed he was being followed - confronted Zimmerman, resulting in a fistic encounter. Martin clearly got the better of that and Zimmerman, in clear apprehension of receiving additional blows, chose to draw his weapon and fire as a last resort.
Based solely on those facts, Zimmerman should not bear criminal culpability. People with criminal intent do not normally communicate their actions to the authorities in real time. While I don't think the evidence is sufficient to establish that Martin was engaging in illegal activity (other than, perhaps, misdemeanor trespass, cutting across yards) up until the encounter, he chose to confront the "Creepy-ass cracker", rather than make a beeline to home and safety. He got killed for his troubles.
But not because he was black. Because instead of saying, "Hey man, you don't have to follow me. I stay right over there. If you have a problem, you can talk to my dad. Good evening" and walking straight home, he decided to fight. He chose poorly. Had he won the fight and killed Zimmerman, he would have been guilty of a crime. The evidence does not establish that Zimmerman is.
There are clear differences for anyone who cares to look at the actual case, versus your hypothetical one. Clear differences and justification for a different verdict.
This post was edited on 7/12 at 10:57 am