The point I've been trying to make is that this story is not actually about Trayvon Martin OR George Zimmerman. The United States has a system of laws and social norms that guarantees that such tragedies will be repeated. Mr. Zimmerman was correctly found not guilty. There is far too much room for reasonable doubt in circumstances such as occurred in this particular case to proceed to conviction, and it has nothing to do with "stand your ground legislation."
But where else besides Somalia and the Congo are you going to have neighbourhood watchmen legally bearing arms? That's where the problem begins (and ends), in my view. Until the American legal and regulatory framework is changed, this story will continue to be retold again and again.
Now, I'm waiting for the systems level analysis. I hope not to have to wait "forever."