that millions of people have protested it,
that some portions of the American population are after Trayvon Martin's memory
instead of after Zimmermann's wrongdoings and calling for the law to be applied says a lot about the state of things in the USA.
It is what we call "un dialogue de sourds" in French and looks very much like what happens in "bullying": the victim becomes the accused.
Most African-Americans find it increasingly difficult to exchange with most European Americans because the latter never listen to the former.
They never listen because their thinking has been formatted so that they can't hear what "Blacks" say and have to say.
They have been formatted to despise anything coming from their dark-skinned fellow-citizens. They are so sure of themselves that they accept even the most hideous lies from the most hideously racist portions of American society.
Zimmermann's defense has started as lies, continues in the form of lies, and will hopefully not end up as lies, because it would mean that the country and its laws have completely failed the victim. It would mean that they have helped the murderer look like a victim. That they have been manipulated into crushing the victim.
Spreading destruction, self-hatred and lack of confidence around him/herself.