Yes, it's entirely possible that Zimmerman was culpable, at least in part, in spirit, if not at law.
But we are a nation of laws, and we accord due process and attention to fact and evidence, to each citizen.
What was that old maxim that we all grew up with?
"Better that a guilty man go free, from time to time, rather than innocent men be punished."
...or words to that effect.
Regardless of the exact wording, the meaning comes through clearly enough, and I consider it a truism.
Zimmerman was found Not Guilty, at law, after due process, in a trial by a jury of his peers.
IMHO, his jury was spot-on... dead on target... they did exactly what they were supposed to do.
Good on them... including the after-the-fact Buyers' Remorse juror who spoke out today.
They did exactly what they were supposed to do, as prescribed by law.
It had far less to do with Faulty Laws than it did with Faulty Evidence - and, more importantly - Incompetent Prosecution.